diff --git a/Projects/App/Project.swift b/Projects/App/Project.swift
index bc49afd5..2596d0dd 100644
--- a/Projects/App/Project.swift
+++ b/Projects/App/Project.swift
@@ -28,7 +28,7 @@ let project = Project.makeModule(
       "UILaunchStoryboardName": "LaunchScreen",
       "BGTaskSchedulerPermittedIdentifiers": "com.oksusu.susu.app",
       "CFBundleShortVersionString": "1.0.6",
-      "CFBundleVersion": "2024093034",
+      "CFBundleVersion": "2024100235",
       "UIUserInterfaceStyle": "Light",
       "ITSAppUsesNonExemptEncryption": "No",
       "AppstoreAPPID": "6503701515",
diff --git a/Projects/Core/SSNetwork/Sources/DataModel/EnvelopeDetailResponse.swift b/Projects/Core/SSNetwork/Sources/DataModel/EnvelopeDetailResponse.swift
index 4d5ec1fe..0278314b 100644
--- a/Projects/Core/SSNetwork/Sources/DataModel/EnvelopeDetailResponse.swift
+++ b/Projects/Core/SSNetwork/Sources/DataModel/EnvelopeDetailResponse.swift
@@ -8,7 +8,7 @@
 
 import Foundation
 
-public struct EnvelopeDetailResponse: Decodable {
+public struct EnvelopeDetailResponse: Decodable, Equatable {
   public let envelope: EnvelopeModel
   public let category: CategoryWithCustomModel
   public let relationship: RelationshipModel
@@ -21,4 +21,18 @@ public struct EnvelopeDetailResponse: Decodable {
     case friendRelationship
     case friend
   }
+
+  public init(
+    envelope: EnvelopeModel,
+    category: CategoryWithCustomModel,
+    relationship: RelationshipModel,
+    friendRelationship: FriendRelationshipModel,
+    friend: FriendModel
+  ) {
+    self.envelope = envelope
+    self.category = category
+    self.relationship = relationship
+    self.friendRelationship = friendRelationship
+    self.friend = friend
+  }
 }
diff --git a/Projects/Core/SSNetwork/Sources/Moya+Asynchronous.swift b/Projects/Core/SSNetwork/Sources/Moya+Asynchronous.swift
index 690aadc8..15ed8769 100644
--- a/Projects/Core/SSNetwork/Sources/Moya+Asynchronous.swift
+++ b/Projects/Core/SSNetwork/Sources/Moya+Asynchronous.swift
@@ -55,12 +55,12 @@ public extension MoyaProvider {
             continuation.resume(returning: res)
             return
           }
-          if let isSUSUError = String(data: response.data, encoding: .utf8) {
-            os_log("\(isSUSUError)")
-          }
           continuation.resume(with: .failure(MoyaError.statusCode(response)))
 
         case let .failure(error):
+          if let errorDescription = error.errorDescription {
+            os_log("errorDescription: \(errorDescription) \n localizedDescription: \(error.localizedDescription)")
+          }
           let willSendError: Error
           switch error {
           case let .statusCode(response):
diff --git a/Projects/Feature/MyPage/Sources/MyPageEdit/MyPageEdit.swift b/Projects/Feature/MyPage/Sources/MyPageEdit/MyPageEdit.swift
index fbbb6d1d..ed95fda4 100644
--- a/Projects/Feature/MyPage/Sources/MyPageEdit/MyPageEdit.swift
+++ b/Projects/Feature/MyPage/Sources/MyPageEdit/MyPageEdit.swift
@@ -56,13 +56,16 @@ struct MyPageEdit {
     }
 
     init() {
-      userInfo = MyPageSharedState.shared.getMyUserInfoDTO() ?? .init(id: 0, name: "", gender: nil, birth: nil)
+      let userInfo = MyPageSharedState.shared.getMyUserInfoDTO() ?? .init(id: 0, name: "", gender: nil, birth: nil)
+      self.userInfo = userInfo
       _selectedBottomSheetItem = .init(nil)
+      let initialSelectedGenderItem = Gender.getGenderByKey(userInfo.gender)
       _genderSectionProperty = .init(
         .init(
           titleText: "성별",
           items: .default,
           isCustomItem: nil,
+          initialSelectedID: initialSelectedGenderItem?.id,
           customTextFieldPrompt: nil,
           isEssentialProperty: false
         )
@@ -72,11 +75,13 @@ struct MyPageEdit {
     init(_ userInfo: UserInfoResponse) {
       self.userInfo = userInfo
       _selectedBottomSheetItem = .init(nil)
+      let initialSelectedGenderItem = Gender.getGenderByKey(userInfo.gender)
       _genderSectionProperty = .init(
         .init(
           titleText: "성별",
           items: .default,
           isCustomItem: nil,
+          initialSelectedID: initialSelectedGenderItem?.id,
           customTextFieldPrompt: nil,
           isEssentialProperty: false
         )
@@ -174,7 +179,9 @@ struct MyPageEdit {
       SSToastReducer()
     }
 
-    Reduce { state, action in
+    Reduce {
+      state,
+        action in
       switch action {
       case let .view(currentAction):
         return viewAction(&state, currentAction)
@@ -206,7 +213,7 @@ struct MyPageEdit {
         let currentGenderID = Gender.getGenderByKey(genderString)?.id
 
         state.nameTextFieldText = state.userInfo.name
-        state.genderSection = .init(singleSelectButtonHelper: state.$genderSectionProperty, initialSelectedID: currentGenderID)
+        state.genderSection = .init(singleSelectButtonHelper: state.$genderSectionProperty)
         return .none
 
       case .async(.updateUserInformation):
@@ -267,3 +274,5 @@ struct SelectYearBottomSheetItem: SSSelectBottomSheetPropertyItemable {
   /// BottomSheet에 표시될 연도 입니다.
   var id: Int
 }
+
+private extension UserInfoResponse {}
diff --git a/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEdit.swift b/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEdit.swift
index da3d1e29..b9b34790 100644
--- a/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEdit.swift
+++ b/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEdit.swift
@@ -43,8 +43,7 @@ struct LedgerDetailEdit: FeatureViewAction, FeatureAsyncAction, FeatureInnerActi
       self.ledgerProperty = ledgerProperty
       _editProperty = .init(ledgerDetailEditProperty)
       categorySection = .init(
-        singleSelectButtonHelper: _editProperty.categoryEditProperty,
-        initialSelectedID: ledgerProperty.categoryID
+        singleSelectButtonHelper: _editProperty.categoryEditProperty
       )
     }
   }
diff --git a/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEditProperty.swift b/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEditProperty.swift
index 9121ae1e..99048371 100644
--- a/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEditProperty.swift
+++ b/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailEdit/LedgerDetailEditProperty.swift
@@ -38,6 +38,7 @@ struct LedgerDetailEditProperty: Equatable {
       titleText: "카테고리",
       items: category,
       isCustomItem: currentCustomItem,
+      initialSelectedID: ledgerDetailProperty.categoryID,
       customTextFieldPrompt: "경조사 이름",
       isEssentialProperty: true
     )
diff --git a/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailRouter/LedgerDetailRouter.swift b/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailRouter/LedgerDetailRouter.swift
index 2e7807ca..a55b8822 100644
--- a/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailRouter/LedgerDetailRouter.swift
+++ b/Projects/Feature/Received/Sources/LedgerDetail/LedgerDetailRouter/LedgerDetailRouter.swift
@@ -56,7 +56,7 @@ struct LedgerDetailRouter {
   func handleEnvelopeDetailDelegateAction(state _: inout State, action: SpecificEnvelopeDetailReducer.Action.DelegateAction) -> Effect<Action> {
     switch action {
     case let .tappedEnvelopeEditButton(property):
-      return .ssRun { [id = property.id] _ in
+      return .ssRun { [id = property.envelope.id] _ in
         let editState = try await SpecificEnvelopeEditReducer.State(envelopeID: id, isShowCategory: false)
         LedgerDetailRouterPublisher.send(.envelopeEdit(editState))
       }
diff --git a/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonProperty.swift b/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonProperty.swift
index 50bde424..a4b1b469 100644
--- a/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonProperty.swift
+++ b/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonProperty.swift
@@ -21,6 +21,8 @@ public struct SingleSelectButtonProperty<Item: SingleSelectButtonItemable>: Equa
   public var customTextFieldPrompt: String?
   public var isSaved: Bool = false
   public var isEssentialProperty = true
+  public let initialSelectedCustomTitle: String?
+  public let initialSelectedID: Item.ID?
 
   public var allItems: [Item] {
     return (items + [isCustomItem]).compactMap { $0 }
@@ -30,10 +32,19 @@ public struct SingleSelectButtonProperty<Item: SingleSelectButtonItemable>: Equa
     return selectedItem?.id == isCustomItem?.id
   }
 
-  public init(titleText: String, items: [Item], isCustomItem: Item?, customTextFieldPrompt: String?, isEssentialProperty: Bool = true) {
+  public init(
+    titleText: String,
+    items: [Item],
+    isCustomItem: Item?,
+    initialSelectedID: Item.ID?,
+    customTextFieldPrompt: String?,
+    isEssentialProperty: Bool = true
+  ) {
     self.titleText = titleText
     self.items = items
     self.isCustomItem = isCustomItem
+    initialSelectedCustomTitle = isCustomItem?.title
+    self.initialSelectedID = initialSelectedID
     self.customTextFieldPrompt = customTextFieldPrompt
     self.isEssentialProperty = isEssentialProperty
   }
@@ -75,6 +86,7 @@ public struct SingleSelectButtonProperty<Item: SingleSelectButtonItemable>: Equa
   }
 
   public mutating func resetCustomTextField() {
+    selectedItem = nil
     isCustomItem?.title = ""
     isSaved = false
     isStartedAddingNewCustomItem = false
diff --git a/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonReducer.swift b/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonReducer.swift
index c43fa0fb..948cf143 100644
--- a/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonReducer.swift
+++ b/Projects/Feature/SSEditSingleSelectButton/Sources/SingleSelectButtonReducer.swift
@@ -20,11 +20,10 @@ public struct SingleSelectButtonReducer<Item: SingleSelectButtonItemable> {
     @Shared var singleSelectButtonHelper: SingleSelectButtonProperty<Item>
     var customTextFieldText: String
 
-    public init(singleSelectButtonHelper: Shared<SingleSelectButtonProperty<Item>>, initialSelectedID: Item.ID?) {
+    public init(singleSelectButtonHelper: Shared<SingleSelectButtonProperty<Item>>) {
       _singleSelectButtonHelper = singleSelectButtonHelper
       customTextFieldText = ""
-      self.initialSelectedID = initialSelectedID
-
+      initialSelectedID = singleSelectButtonHelper.wrappedValue.initialSelectedID
       setCustomTextField()
     }
 
diff --git a/Projects/Feature/SSEnvelope/Sources/Network/EnvelopeNetwork.swift b/Projects/Feature/SSEnvelope/Sources/Network/EnvelopeNetwork.swift
index d6ffe3b9..60091ef3 100644
--- a/Projects/Feature/SSEnvelope/Sources/Network/EnvelopeNetwork.swift
+++ b/Projects/Feature/SSEnvelope/Sources/Network/EnvelopeNetwork.swift
@@ -22,7 +22,7 @@ struct EnvelopeNetwork {
   var getEnvelopeDetailPropertyByEnvelopeID: @Sendable (_ id: Int64) async throws -> EnvelopeDetailProperty
   @Sendable static func _getEnvelopeDetailPropertyByEnvelopeID(_ id: Int64) async throws -> EnvelopeDetailProperty {
     let data: EnvelopeDetailResponse = try await provider.request(.searchEnvelopeByID(id))
-    return data.convertToEnvelopeDetailLProperty()
+    return data
   }
 
   var deleteEnvelope: @Sendable (_ id: Int64) async throws -> Void
@@ -37,21 +37,15 @@ struct EnvelopeNetwork {
     let relations = responseRelations.sorted { $0.id < $1.id }
 
     let envelopeDetailResponse: EnvelopeDetailResponse = try await provider.request(.searchEnvelopeByID(envelopeID))
-    let envelopeProperty = envelopeDetailResponse.convertToEnvelopeDetailLProperty()
 
-    guard var customCategoryItem = events.first(where: { $0.isCustom }),
-          var customRelationItem = relations.first(where: { $0.isCustom })
-    else {
-      throw NSError(domain: "", code: 3)
-    }
+    let customCategoryItem = events.first(where: { $0.isCustom }) ?? .editCustomDefault
+    let customRelationItem = relations.first(where: { $0.isCustom }) ?? .editCustomDefault
+
     let targetCategoryItems = events.filter { $0.isCustom == false }
     let targetRelationItems = relations.filter { $0.isCustom == false }
 
-    customCategoryItem.title = envelopeDetailResponse.category.customCategory ?? ""
-    customRelationItem.title = envelopeDetailResponse.friendRelationship.customRelation ?? ""
-
     return .init(
-      envelopeDetailProperty: envelopeProperty,
+      envelopeDetailProperty: envelopeDetailResponse,
       eventItems: targetCategoryItems,
       customEventItem: customCategoryItem,
       relationItems: targetRelationItems,
@@ -70,21 +64,11 @@ struct EnvelopeNetwork {
     // TODO: 작업하기
     let dto: CreateAndUpdateEnvelopeResponse = try await provider.request(.editEnvelopes(id: id, body))
     return .init(
-      id: dto.envelope.id,
-      type: dto.envelope.type,
-      ledgerID: nil,
-      price: dto.envelope.amount,
-      eventName: dto.category.customCategory ?? dto.category.category,
-      eventID: dto.category.id,
-      friendID: dto.friend.id,
-      name: dto.friend.name,
-      relation: dto.friendRelationship.customRelation ?? dto.relationship.relation,
-      relationID: dto.relationship.id,
-      date: CustomDateFormatter.getDate(from: dto.envelope.handedOverAt) ?? .now,
-      isVisited: dto.envelope.hasVisited,
-      gift: dto.envelope.gift,
-      contacts: dto.friend.phoneNumber,
-      memo: dto.envelope.memo
+      envelope: dto.envelope,
+      category: dto.category,
+      relationship: dto.relationship,
+      friendRelationship: dto.friendRelationship,
+      friend: dto.friend
     )
   }
 
@@ -194,25 +178,14 @@ private extension Date {
   }
 }
 
-private extension EnvelopeDetailResponse {
-  func convertToEnvelopeDetailLProperty() -> EnvelopeDetailProperty {
-    let data = self
-    return .init(
-      id: data.envelope.id,
-      type: data.envelope.type,
-      ledgerID: nil,
-      price: data.envelope.amount,
-      eventName: data.category.customCategory ?? data.category.category,
-      eventID: data.category.id,
-      friendID: data.friend.id,
-      name: data.friend.name,
-      relation: data.friendRelationship.customRelation != nil ? data.friendRelationship.customRelation! : data.relationship.relation,
-      relationID: data.relationship.id,
-      date: .getDate(from: data.envelope.handedOverAt) ?? .now,
-      isVisited: data.envelope.hasVisited,
-      gift: data.envelope.gift,
-      contacts: data.friend.phoneNumber,
-      memo: data.envelope.memo
-    )
+private extension CreateEnvelopeEventProperty {
+  static var editCustomDefault: Self {
+    .init(id: 2048, seq: 2048, name: "", style: "blue60", isActive: true, isCustom: true, isMiscCategory: true)
+  }
+}
+
+extension CreateEnvelopeRelationItemProperty {
+  static var editCustomDefault: Self {
+    .init(id: 2048, relation: "", description: "", isCustom: true)
   }
 }
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/EnvelopeDetailProperty.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/EnvelopeDetailProperty.swift
index 0ce38225..a269c3d4 100644
--- a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/EnvelopeDetailProperty.swift
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/EnvelopeDetailProperty.swift
@@ -7,68 +7,36 @@
 //
 
 import Foundation
+import SSNetwork
 
-public struct EnvelopeDetailProperty: Equatable, Identifiable {
-  /// 봉투의 아이디 입니다.
-  public let id: Int64
-  /// Send OR RECEIVED
-  var type: String
-  /// 장부 아이디 입니다.
-  var ledgerID: Int64?
-  /// 현재 봉투의 가격을 나타냅니다.
-  let price: Int64
-  /// 현재 봉투의 경조사 이름을 나타냅니다.
-  let eventName: String
-  /// 현재 봉투 카테고리 ID를 나타냅니다.
-  let eventID: Int
-  /// 봉투를 받은 사람의 ID입니다.
-  let friendID: Int64
-  /// 봉투를 받은 사람의 이름을 나타냅니다.
-  let name: String
-  ///  현재 봉투를 주고받은 사람과의 관계를 나타냅니다.
-  let relation: String
-  /// 봉투 relationID를 나타냅니다.
-  let relationID: Int
-  /// 현재 봉투를 주고받은 날짜를 나타냅니다.
-  let date: Date
-  /// 현재 봉투의 대상이되는 경조사에 참석 여부를 나타냅니다.
-  let isVisited: Bool?
-  /// 봉투의 선물을 나타냅니다.
-  var gift: String?
-  /// 봉투의 연락처를 나타냅니다.
-  var contacts: String?
-  /// 봉투의 메모를 나타냅니다.
-  var memo: String?
+public typealias EnvelopeDetailProperty = EnvelopeDetailResponse
+
+extension EnvelopeDetailProperty {
+  var eventNameTitle: String { "경조사" }
+  var nameTitle: String { "이름" }
+  var relationTitle: String { "나와의 관계" }
+  var dateTitle: String { "날짜" }
+  var visitedTitle: String { "방문여부" }
+  var giftTitle: String { "선물" }
+  var contactTitle: String { "연락처" }
+  var memoTitle: String { "메모" }
 
   var priceText: String {
-    return (CustomNumberFormatter.formattedByThreeZero(price) ?? "0") + "원"
+    return (CustomNumberFormatter.formattedByThreeZero(envelope.amount) ?? "0") + "원"
   }
 
   var dateText: String {
+    let date = CustomDateFormatter.getDate(from: envelope.handedOverAt) ?? .now
     return CustomDateFormatter.getKoreanDateString(from: date)
   }
 
-  var isVisitedText: String? {
-    if let isVisited {
-      return isVisited ? "예" : "아니오"
-    }
-    return nil
-  }
-
-  var eventNameTitle = "경조사"
-  var nameTitle = "이름"
-  var relationTitle = "나와의 관계"
-  var dateTitle = "날짜"
-  var visitedTitle = "방문여부"
-  var giftTitle = "선물"
-  var contactTitle = "연락처"
-  var memoTitle = "메모"
-
   func makeListContent(isShowCategory: Bool) -> [(String, String)] {
-    var res = isShowCategory ? [(eventNameTitle, eventName)] : []
+    let categoryName = category.customCategory ?? category.category
+    let relationName = friendRelationship.customRelation ?? relationship.relation
+    var res = isShowCategory ? [(eventNameTitle, categoryName)] : []
     res.append(contentsOf: [
-      (nameTitle, name),
-      (relationTitle, relation),
+      (nameTitle, friend.name),
+      (relationTitle, relationName),
       (dateTitle, dateText),
     ])
     res.append(contentsOf: makeOptionalListContent())
@@ -77,68 +45,19 @@ public struct EnvelopeDetailProperty: Equatable, Identifiable {
 
   func makeOptionalListContent() -> [(String, String)] {
     var res: [(String, String)] = []
-    if let isVisitedText {
-      res.append((visitedTitle, isVisitedText))
+    if let hasVisited = envelope.hasVisited {
+      let visitedText: String = hasVisited ? "예" : "아니오"
+      res.append((visitedTitle, visitedText))
     }
-    if let gift {
+    if let gift = envelope.gift {
       res.append((giftTitle, gift))
     }
-    if let contacts {
+    if let contacts = friend.phoneNumber {
       res.append((contactTitle, contacts))
     }
-    if let memo {
+    if let memo = envelope.memo {
       res.append((memoTitle, memo))
     }
     return res
   }
-
-  init(
-    id: Int64,
-    type: String,
-    ledgerID: Int64? = nil,
-    price: Int64,
-    eventName: String,
-    eventID: Int,
-    friendID: Int64,
-    name: String,
-    relation: String,
-    relationID: Int,
-    date: Date,
-    isVisited: Bool?,
-    gift: String? = nil,
-    contacts: String? = nil,
-    memo: String? = nil,
-    eventNameTitle: String = "경조사",
-    nameTitle: String = "이름",
-    relationTitle: String = "나와의 관계",
-    dateTitle: String = "날짜",
-    visitedTitle: String = "방문여부",
-    giftTitle: String = "선물",
-    contactTitle: String = "연락처",
-    memoTitle: String = "메모"
-  ) {
-    self.id = id
-    self.type = type
-    self.ledgerID = ledgerID
-    self.price = price
-    self.eventName = eventName
-    self.eventID = eventID
-    self.friendID = friendID
-    self.name = name
-    self.relation = relation
-    self.relationID = relationID
-    self.date = date
-    self.isVisited = isVisited
-    self.gift = gift
-    self.contacts = contacts
-    self.memo = memo
-    self.eventNameTitle = eventNameTitle
-    self.nameTitle = nameTitle
-    self.relationTitle = relationTitle
-    self.dateTitle = dateTitle
-    self.visitedTitle = visitedTitle
-    self.giftTitle = giftTitle
-    self.contactTitle = contactTitle
-    self.memoTitle = memoTitle
-  }
 }
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailReducer.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailReducer.swift
index 52a79967..5ae139c3 100644
--- a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailReducer.swift
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailReducer.swift
@@ -23,16 +23,14 @@ public struct SpecificEnvelopeDetailReducer {
     var isDeleteAlertPresent = false
     var isLoading = false
     var header: HeaderViewFeature.State = .init(.init(type: .depth2DoubleText("편집", "삭제")))
-    var envelopeDetailProperty: EnvelopeDetailProperty
+    var envelopeDetailProperty: EnvelopeDetailProperty?
     var envelopeID: Int64
     var isUpdateEnvelope: Bool = false
     let isShowCategory: Bool
     public init(envelopeID: Int64, isShowCategory: Bool = true) {
       self.envelopeID = envelopeID
       self.isShowCategory = isShowCategory
-      envelopeDetailProperty = .init(
-        id: -1, type: "", price: 0, eventName: "", eventID: 0, friendID: 0, name: "", relation: "", relationID: 0, date: .now, isVisited: false
-      )
+      envelopeDetailProperty = nil
     }
   }
 
@@ -108,14 +106,21 @@ public struct SpecificEnvelopeDetailReducer {
   public func asyncAction(_ state: inout State, _ action: AsyncAction) -> ComposableArchitecture.Effect<Action> {
     switch action {
     case .deleteEnvelope:
-      return .ssRun { [id = state.envelopeDetailProperty.id] _ in
+
+      return .ssRun { [id = state.envelopeID] _ in
         try await network.deleteEnvelope(id)
         specificEnvelopePublisher.sendDeleteEnvelopeBy(ID: id)
         await dismiss()
       }
     case .pushEditing:
       let property = state.envelopeDetailProperty
-      return .send(.delegate(.tappedEnvelopeEditButton(property)))
+      return .ssRun { send in
+        guard let property else {
+          let errorMessage = "envelopeDetailProperty가 생성되지 않은 상태에서 edit화면으로 이동하려고 합니다."
+          throw SUSUError(error: NSError(), response: nil, requestData: errorMessage)
+        }
+        await send(.delegate(.tappedEnvelopeEditButton(property)))
+      }
 
     case .getEnvelopeDetailProperty:
       return .ssRun { [id = state.envelopeID] send in
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailView.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailView.swift
index 07d35257..f2998028 100644
--- a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailView.swift
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeDetail/SpecificEnvelopeDetailView.swift
@@ -25,19 +25,19 @@ public struct SpecificEnvelopeDetailView: View {
   // MARK: Content
 
   @ViewBuilder
-  private func makeContentView() -> some View {
+  private func makeContentView(_ envelopeDetailProperty: EnvelopeDetailProperty) -> some View {
     VStack(alignment: .leading) {
       Spacer()
         .frame(height: 24)
 
       VStack(alignment: .leading, spacing: 16) {
-        Text(store.envelopeDetailProperty.priceText)
+        Text(envelopeDetailProperty.priceText)
           .modifier(SSTypoModifier(.title_xxl))
           .foregroundStyle(SSColor.gray100)
 
         ScrollView(showsIndicators: false) {
           LazyVStack(spacing: 0) {
-            let listViewContent = store.envelopeDetailProperty.makeListContent(isShowCategory: store.isShowCategory)
+            let listViewContent = envelopeDetailProperty.makeListContent(isShowCategory: store.isShowCategory)
             ForEach(0 ..< listViewContent.count, id: \.self) { ind in
               let (title, description) = listViewContent[ind]
               makeListView(title: title, description: description)
@@ -74,8 +74,10 @@ public struct SpecificEnvelopeDetailView: View {
         .ignoresSafeArea()
       VStack(spacing: 0) {
         HeaderView(store: store.scope(state: \.header, action: \.scope.header))
-        makeContentView()
-          .padding(.horizontal, Metrics.horizontalSpacing)
+        if let envelopeDetailProperty = store.envelopeDetailProperty {
+          makeContentView(envelopeDetailProperty)
+            .padding(.horizontal, Metrics.horizontalSpacing)
+        }
       }
     }
     .navigationBarBackButtonHidden()
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/ContactEditProperty.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/ContactEditProperty.swift
new file mode 100644
index 00000000..7006a340
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/ContactEditProperty.swift
@@ -0,0 +1,40 @@
+//
+//  ContactEditProperty.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+import SSRegexManager
+
+// MARK: - ContactEditProperty
+
+struct ContactEditProperty: Equatable, EnvelopeEditPropertiable {
+  var contact: String
+  let originalContact: String
+  init(contact: String?) {
+    let contact = contact ?? ""
+    self.contact = contact
+    originalContact = contact
+  }
+
+  var isValid: Bool {
+    if !contact.isEmpty {
+      return RegexManager.isValidContacts(contact)
+    }
+    return true
+  }
+
+  var isChanged: Bool {
+    originalContact != contact
+  }
+
+  var isShowToast: Bool {
+    if !contact.isEmpty {
+      return ToastRegexManager.isShowToastByContacts(contact)
+    }
+    return false
+  }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/DateEditProperty.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/DateEditProperty.swift
new file mode 100644
index 00000000..0c6c46eb
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/DateEditProperty.swift
@@ -0,0 +1,33 @@
+//
+//  DateEditProperty.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+
+// MARK: - DateEditProperty
+
+struct DateEditProperty: Equatable, EnvelopeEditPropertiable {
+  let originalDate: Date
+  var date: Date
+  var isInitialState = false
+  var dateText: String {
+    return CustomDateFormatter.getKoreanDateString(from: date)
+  }
+
+  init(date: Date) {
+    self.date = date
+    originalDate = date
+  }
+
+  var isValid: Bool {
+    true
+  }
+
+  var isChanged: Bool {
+    originalDate != date
+  }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/EnvelopeEditPropertiable.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/EnvelopeEditPropertiable.swift
new file mode 100644
index 00000000..a87d7a6d
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/EnvelopeEditPropertiable.swift
@@ -0,0 +1,14 @@
+//
+//  EnvelopeEditPropertiable.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+
+protocol EnvelopeEditPropertiable {
+  var isValid: Bool { get }
+  var isChanged: Bool { get }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/GiftEditProperty.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/GiftEditProperty.swift
new file mode 100644
index 00000000..c9391324
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/GiftEditProperty.swift
@@ -0,0 +1,41 @@
+//
+//  GiftEditProperty.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+import SSRegexManager
+
+// MARK: - GiftEditProperty
+
+struct GiftEditProperty: Equatable, EnvelopeEditPropertiable {
+  let originalGift: String
+  var gift: String
+
+  init(gift: String?) {
+    let gift = gift ?? ""
+    self.gift = gift
+    originalGift = gift
+  }
+
+  var isValid: Bool {
+    if !gift.isEmpty {
+      return RegexManager.isValidGift(gift)
+    }
+    return true
+  }
+
+  var isChanged: Bool {
+    originalGift != gift
+  }
+
+  var isShowToast: Bool {
+    if !gift.isEmpty {
+      return ToastRegexManager.isShowToastByGift(gift)
+    }
+    return false
+  }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/MemoEditProperty.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/MemoEditProperty.swift
new file mode 100644
index 00000000..dbed172d
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/MemoEditProperty.swift
@@ -0,0 +1,40 @@
+//
+//  MemoEditProperty.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+import SSRegexManager
+
+// MARK: - MemoEditProperty
+
+struct MemoEditProperty: Equatable, EnvelopeEditPropertiable {
+  let originalMemo: String
+  var memo: String
+  init(memo: String?) {
+    let memo = memo ?? ""
+    self.memo = memo
+    originalMemo = memo
+  }
+
+  var isValid: Bool {
+    if !memo.isEmpty {
+      return RegexManager.isValidMemo(memo)
+    }
+    return true
+  }
+
+  var isChanged: Bool {
+    originalMemo != memo
+  }
+
+  var isShowToast: Bool {
+    if !memo.isEmpty {
+      return ToastRegexManager.isShowToastByMemo(memo)
+    }
+    return false
+  }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/NameEditProperty.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/NameEditProperty.swift
new file mode 100644
index 00000000..a3bd437d
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/NameEditProperty.swift
@@ -0,0 +1,35 @@
+//
+//  NameEditProperty.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+import SSRegexManager
+
+// MARK: - NameEditProperty
+
+/// EditName을 하기 위해 사용됩니다.
+struct NameEditProperty: Equatable, EnvelopeEditPropertiable {
+  let originalText: String
+  var textFieldText: String
+
+  var isValid: Bool {
+    RegexManager.isValidName(textFieldText)
+  }
+
+  var isChanged: Bool {
+    originalText != textFieldText
+  }
+
+  var isShowToast: Bool {
+    ToastRegexManager.isShowToastByName(textFieldText)
+  }
+
+  init(textFieldText: String) {
+    self.textFieldText = textFieldText
+    originalText = textFieldText
+  }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/PriceEditProperty.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/PriceEditProperty.swift
new file mode 100644
index 00000000..95ad828b
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/PriceEditProperty.swift
@@ -0,0 +1,47 @@
+//
+//  PriceEditProperty.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+import SSRegexManager
+
+// MARK: - PriceEditProperty
+
+struct PriceEditProperty: Equatable, EnvelopeEditPropertiable {
+  let originalPriceValue: String
+  var price: Int64
+  var priceTextFieldText: String
+  var priceText: String {
+    CustomNumberFormatter.formattedByThreeZero(price, subFixString: "원") ?? ""
+  }
+
+  init(price: Int64) {
+    self.price = price
+    priceTextFieldText = price.description
+    originalPriceValue = price.description
+  }
+
+  mutating func setPriceTextFieldText(_ text: String) {
+    priceTextFieldText = text.isEmpty ? "0" : text
+    guard let currentValue = Int64(priceTextFieldText) else {
+      return
+    }
+    price = currentValue
+  }
+
+  var isValid: Bool {
+    RegexManager.isValidPrice(priceTextFieldText)
+  }
+
+  var isChanged: Bool {
+    originalPriceValue != priceTextFieldText
+  }
+
+  var isShowToast: Bool {
+    ToastRegexManager.isShowToastByPrice(priceTextFieldText)
+  }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/VisitedSelectButtonItem.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/VisitedSelectButtonItem.swift
new file mode 100644
index 00000000..93d9d978
--- /dev/null
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/EditProperty/VisitedSelectButtonItem.swift
@@ -0,0 +1,63 @@
+//
+//  VisitedSelectButtonItem.swift
+//  SSEnvelope
+//
+//  Created by MaraMincho on 10/2/24.
+//  Copyright © 2024 com.oksusu. All rights reserved.
+//
+
+import Foundation
+import SSEditSingleSelectButton
+
+// MARK: - VisitedEditProperty
+
+struct VisitedEditProperty: Equatable, EnvelopeEditPropertiable {
+  let originalVisited: Bool?
+  var isVisited: Bool?
+
+  init(isVisited: Bool?) {
+    self.isVisited = isVisited
+    originalVisited = isVisited
+  }
+
+  var isValid: Bool {
+    return true
+  }
+
+  var isChanged: Bool {
+    originalVisited != isVisited
+  }
+}
+
+// MARK: - VisitedSelectButtonItem
+
+public struct VisitedSelectButtonItem: SingleSelectButtonItemable {
+  public var id: Int
+  public var title: String = ""
+  var isVisited: Bool
+  init(id: Int, title: String = "", isVisited: Bool) {
+    self.id = id
+    self.title = title
+    self.isVisited = isVisited
+  }
+
+  mutating func setTitle(by isVisited: Bool) {
+    title = isVisited ? "예" : "아니오"
+  }
+}
+
+extension VisitedSelectButtonItem {
+  static func defaultItems() -> [Self] {
+    return [
+      yes, no,
+    ]
+  }
+
+  static var yes: Self {
+    .init(id: 0, title: "예", isVisited: true)
+  }
+
+  static var no: Self {
+    .init(id: 1, title: "아니오", isVisited: false)
+  }
+}
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditHelper.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditHelper.swift
index 7acbce29..09ab6ae3 100644
--- a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditHelper.swift
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditHelper.swift
@@ -13,6 +13,20 @@ import SSRegexManager
 // MARK: - SpecificEnvelopeEditHelper
 
 public struct SpecificEnvelopeEditHelper: Equatable {
+  var envelopeEditProperties: [EnvelopeEditPropertiable] {
+    [
+      priceProperty,
+      eventSectionButtonHelper,
+      relationSectionButtonHelper,
+      nameEditProperty,
+      dateEditProperty,
+      visitedSectionButtonHelper,
+      giftEditProperty,
+      contactEditProperty,
+      memoEditProperty,
+    ]
+  }
+
   var envelopeDetailProperty: EnvelopeDetailProperty
 
   var priceProperty: PriceEditProperty
@@ -45,52 +59,48 @@ public struct SpecificEnvelopeEditHelper: Equatable {
   ) {
     self.envelopeDetailProperty = envelopeDetailProperty
 
-    priceProperty = .init(price: envelopeDetailProperty.price)
+    priceProperty = .init(price: envelopeDetailProperty.envelope.amount)
 
     eventSectionButtonCustomItem = customEventItem
+    eventSectionButtonCustomItem.name = envelopeDetailProperty.category.customCategory ?? ""
     eventSectionButtonHelper = .init(
       titleText: envelopeDetailProperty.eventNameTitle,
       items: eventItems,
       isCustomItem: eventSectionButtonCustomItem,
-      customTextFieldPrompt: "경조사 이름"
-    )
-
-    eventSectionButtonHelper = .init(
-      titleText: envelopeDetailProperty.eventNameTitle,
-      items: eventItems,
-      isCustomItem: eventSectionButtonCustomItem,
+      initialSelectedID: envelopeDetailProperty.category.id,
       customTextFieldPrompt: "경조사 이름"
     )
 
     // 만약 현재 관계가 default 이벤트에 존재 하지 않는다면
     relationSectionButtonCustomItem = customRelationItem
-
+    relationSectionButtonCustomItem.relation = envelopeDetailProperty.friendRelationship.customRelation ?? ""
     relationSectionButtonHelper = .init(
       titleText: envelopeDetailProperty.relationTitle,
       items: relationItems,
       isCustomItem: relationSectionButtonCustomItem,
+      initialSelectedID: envelopeDetailProperty.relationship.id,
       customTextFieldPrompt: "관계 이름"
     )
 
-    nameEditProperty = .init(textFieldText: envelopeDetailProperty.name)
-
-    dateEditProperty = .init(date: envelopeDetailProperty.date)
+    nameEditProperty = .init(textFieldText: envelopeDetailProperty.friend.name)
+    let date = CustomDateFormatter.getDate(from: envelopeDetailProperty.envelope.handedOverAt) ?? .now
+    dateEditProperty = .init(date: date)
 
+    // has visited?
     visitedSectionButtonHelper = .init(
       titleText: envelopeDetailProperty.visitedTitle,
       items: VisitedSelectButtonItem.defaultItems(),
       isCustomItem: nil,
+      initialSelectedID: envelopeDetailProperty.hasVisitedID,
       customTextFieldPrompt: nil,
       isEssentialProperty: false
     )
 
-    visitedEditProperty = .init(isVisited: envelopeDetailProperty.isVisited ?? true)
-
-    giftEditProperty = .init(gift: envelopeDetailProperty.gift ?? "")
-
-    contactEditProperty = .init(contact: envelopeDetailProperty.contacts ?? "")
-
-    memoEditProperty = .init(memo: envelopeDetailProperty.memo ?? "")
+    // Additional Property initialize
+    visitedEditProperty = .init(isVisited: envelopeDetailProperty.envelope.hasVisited)
+    giftEditProperty = .init(gift: envelopeDetailProperty.envelope.gift)
+    contactEditProperty = .init(contact: envelopeDetailProperty.friend.phoneNumber)
+    memoEditProperty = .init(memo: envelopeDetailProperty.envelope.memo)
   }
 
   mutating func changeName(_ name: String) {
@@ -153,176 +163,39 @@ public struct SpecificEnvelopeEditHelper: Equatable {
     priceProperty.isShowToast
   }
 
-  func isValidToSave() -> Bool {
-    (priceProperty.isValid) &&
-      (eventSectionButtonHelper.isValid()) &&
-      (nameEditProperty.isValid) &&
-      (relationSectionButtonHelper.isValid()) &&
-      (memoEditProperty.isValid) &&
-      (contactEditProperty.isValid) &&
-      (giftEditProperty.isValid) &&
-      (visitedEditProperty.isValid)
-    // 데이트는 항상 참이니까 제외
-  }
-}
-
-// MARK: - PriceEditProperty
-
-struct PriceEditProperty: Equatable {
-  var price: Int64
-  var priceTextFieldText: String
-  var priceText: String
-
-  init(price: Int64) {
-    self.price = price
-    priceTextFieldText = price.description
-    priceText = CustomNumberFormatter.formattedByThreeZero(price, subFixString: "원") ?? ""
-  }
-
-  mutating func setPriceTextFieldText(_ text: String) {
-    priceTextFieldText = text.isEmpty ? "0" : text
-    guard let currentValue = Int64(priceTextFieldText) else {
-      return
-    }
-    price = currentValue
-    priceText = CustomNumberFormatter.formattedByThreeZero(currentValue, subFixString: "원") ?? ""
-  }
-
-  var isValid: Bool {
-    RegexManager.isValidPrice(priceTextFieldText)
-  }
-
-  var isShowToast: Bool {
-    ToastRegexManager.isShowToastByPrice(priceTextFieldText)
-  }
-}
-
-// MARK: - GiftEditProperty
-
-struct GiftEditProperty: Equatable {
-  var gift: String
-
-  init(gift: String) {
-    self.gift = gift
-  }
-
-  var isValid: Bool {
-    RegexManager.isValidGift(gift) || gift.isEmpty
-  }
-
-  var isShowToast: Bool {
-    ToastRegexManager.isShowToastByGift(gift)
-  }
-}
-
-// MARK: - ContactEditProperty
-
-struct ContactEditProperty: Equatable {
-  var contact: String
-
-  init(contact: String) {
-    self.contact = contact
-  }
-
-  var isValid: Bool {
-    RegexManager.isValidContacts(contact) || contact.isEmpty
-  }
-
-  var isShowToast: Bool {
-    ToastRegexManager.isShowToastByContacts(contact)
-  }
-}
-
-// MARK: - MemoEditProperty
-
-struct MemoEditProperty: Equatable {
-  var memo: String
-  init(memo: String) {
-    self.memo = memo
-  }
-
-  var isValid: Bool {
-    RegexManager.isValidMemo(memo) || memo.isEmpty
-  }
-
-  var isShowToast: Bool {
-    ToastRegexManager.isShowToastByMemo(memo)
+  func isChangedProperty() -> Bool {
+    false
   }
-}
-
-// MARK: - VisitedEditProperty
 
-struct VisitedEditProperty: Equatable {
-  var isVisited: Bool
-
-  init(isVisited: Bool) {
-    self.isVisited = isVisited
-  }
-
-  var isValid: Bool {
-    return true
-  }
-}
-
-// MARK: - VisitedSelectButtonItem
-
-public struct VisitedSelectButtonItem: SingleSelectButtonItemable {
-  public var id: Int
-  public var title: String = ""
-  var isVisited: Bool
-  init(id: Int, title: String = "", isVisited: Bool) {
-    self.id = id
-    self.title = title
-    self.isVisited = isVisited
-  }
-
-  mutating func setTitle(by isVisited: Bool) {
-    title = isVisited ? "예" : "아니오"
-  }
-}
-
-extension VisitedSelectButtonItem {
-  static func defaultItems() -> [Self] {
-    return [
-      yes, no,
-    ]
-  }
-
-  static var yes: Self {
-    .init(id: 0, title: "예", isVisited: true)
-  }
-
-  static var no: Self {
-    .init(id: 1, title: "아니오", isVisited: false)
+  func isValidToSave() -> Bool {
+    let isChanged = !envelopeEditProperties.filter(\.isChanged).isEmpty
+    let isValid = envelopeEditProperties.filter { $0.isValid == false }.isEmpty
+    return isValid && isChanged
   }
 }
 
-// MARK: - DateEditProperty
-
-struct DateEditProperty: Equatable {
-  var date: Date
-  var isInitialState = false
-
-  var dateText: String {
-    return CustomDateFormatter.getKoreanDateString(from: date)
-  }
-
-  init(date: Date) {
-    self.date = date
+private extension EnvelopeDetailProperty {
+  var hasVisitedID: VisitedSelectButtonItem.ID? {
+    guard let hasVisited = envelope.hasVisited else {
+      return nil
+    }
+    return hasVisited ? VisitedSelectButtonItem.yes.id : VisitedSelectButtonItem.no.id
   }
 }
 
-// MARK: - NameEditProperty
-
-/// EditName을 하기 위해 사용됩니다.
-struct NameEditProperty: Equatable {
-  var textFieldText: String
+// MARK: - SingleSelectButtonHelper + EnvelopeEditPropertiable
 
+extension SingleSelectButtonHelper: EnvelopeEditPropertiable {
   var isValid: Bool {
-    RegexManager.isValidName(textFieldText)
+    isValid()
   }
 
-  var isShowToast: Bool {
-    ToastRegexManager.isShowToastByName(textFieldText)
+  var isChanged: Bool {
+    // 커스텀 아이템이 되었고, 과거에 커스텀 아이템 타이틀이 존재했다면
+    if let initialCustomTitle = initialSelectedCustomTitle, isCustomItemSelected {
+      return initialCustomTitle != selectedItem?.title
+    }
+    // 커스텀 아이템이 선택되지 않았다면
+    return initialSelectedID != selectedItem?.id
   }
 }
diff --git a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditReducer.swift b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditReducer.swift
index 5338a721..eb2f8d6f 100644
--- a/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditReducer.swift
+++ b/Projects/Feature/SSEnvelope/Sources/SpecificEnvelopeEdit/SpecificEnvelopeEditReducer.swift
@@ -35,24 +35,9 @@ public struct SpecificEnvelopeEditReducer {
     init(editHelper: SpecificEnvelopeEditHelper, isShowCategory: Bool = true) {
       self.isShowCategory = isShowCategory
       _editHelper = .init(editHelper)
-      let initialVisited: VisitedSelectButtonItem? =
-        if let isVisited = editHelper.envelopeDetailProperty.isVisited {
-          isVisited ? .yes : .no
-        } else {
-          nil
-        }
-      eventSection = .init(
-        singleSelectButtonHelper: _editHelper.eventSectionButtonHelper,
-        initialSelectedID: editHelper.envelopeDetailProperty.eventID
-      )
-      relationSection = .init(
-        singleSelectButtonHelper: _editHelper.relationSectionButtonHelper,
-        initialSelectedID: editHelper.envelopeDetailProperty.relationID
-      )
-      visitedSection = .init(
-        singleSelectButtonHelper: _editHelper.visitedSectionButtonHelper,
-        initialSelectedID: initialVisited?.id
-      )
+      eventSection = .init(singleSelectButtonHelper: _editHelper.eventSectionButtonHelper)
+      relationSection = .init(singleSelectButtonHelper: _editHelper.relationSectionButtonHelper)
+      visitedSection = .init(singleSelectButtonHelper: _editHelper.visitedSectionButtonHelper)
     }
 
     public init(envelopeID: Int64, isShowCategory: Bool = true) async throws {
@@ -93,7 +78,6 @@ public struct SpecificEnvelopeEditReducer {
 
   public enum AsyncAction: Equatable {
     case editFriendsAndEnvelope
-    case updateEnvelopes(friendID: Int64)
   }
 
   @Dependency(\.envelopeNetwork) var network
@@ -233,70 +217,62 @@ extension SpecificEnvelopeEditReducer: FeatureViewAction, FeatureInnerAction, Fe
     }
   }
 
+  func updateEnvelope(_ state: State, friendID: Int64, send: Send<Action>) async throws {
+    guard let selectedCategoryItem = state.editHelper.eventSectionButtonHelper.selectedItem else {
+      return
+    }
+
+    let customCategory = selectedCategoryItem.id == state.editHelper.eventSectionButtonHelper.isCustomItem?.id ?
+      state.editHelper.eventSectionButtonHelper.isCustomItem?.title : nil
+
+    let giftText: String = state.editHelper.giftEditProperty.gift
+    let queryGiftText: String? = giftText.isEmpty ? nil : giftText
+
+    let memoText: String = state.editHelper.memoEditProperty.memo
+    let queryMemoText: String? = memoText.isEmpty ? nil : memoText
+
+    let envelopeRequestBody = CreateAndUpdateEnvelopeRequest(
+      type: state.editHelper.envelopeDetailProperty.envelope.type,
+      friendId: friendID,
+      ledgerId: nil,
+      amount: state.editHelper.priceProperty.price,
+      gift: queryGiftText,
+      memo: queryMemoText,
+      hasVisited: state.editHelper.visitedSectionButtonHelper.selectedItem?.isVisited,
+      handedOverAt: CustomDateFormatter.getFullDateString(from: state.editHelper.dateEditProperty.date),
+      category: .init(id: state.editHelper.eventSectionButtonHelper.selectedItem?.id ?? 0, customCategory: customCategory)
+    )
+
+    let envelopeID = state.editHelper.envelopeDetailProperty.envelope.id
+
+    let envelopeProperty = try await network.editEnvelopes(envelopeID, envelopeRequestBody)
+    UpdateEnvelopeDetailPropertyPublisher.send(envelopeProperty)
+    await send(.delegate(.tappedSaveButton(envelopeID: envelopeID)))
+    await dismiss()
+  }
+
   public func asyncAction(_ state: inout State, _ action: AsyncAction) -> ComposableArchitecture.Effect<Action> {
     switch action {
     case .editFriendsAndEnvelope:
-      guard let selectedRelationItem = state.editHelper.relationSectionButtonHelper.selectedItem,
-            let customItem = state.editHelper.relationSectionButtonHelper.isCustomItem,
-            let selectedItemID = state.editHelper.relationSectionButtonHelper.selectedItem?.id
+      guard let selectedRelationItem = state.editHelper.relationSectionButtonHelper.selectedItem
       else {
         return .none
       }
-
-      // 만약 선택된 아이템이 customItem일 경우
-      let customRelation = selectedItemID == customItem.id ? customItem.title : nil
       let phoneNumber = state.editHelper.contactEditProperty.contact
-
-      let friendID = state.editHelper.envelopeDetailProperty.friendID
+      let customItemTitle = state.editHelper.relationSectionButtonHelper.isCustomItem?.relation
       let friendRequestBody = CreateAndUpdateFriendRequest(
         name: state.editHelper.nameEditProperty.textFieldText,
         phoneNumber: phoneNumber.isEmpty ? nil : phoneNumber,
         relationshipId: selectedRelationItem.id,
-        customRelation: customRelation
+        customRelation: customItemTitle
       )
 
-      return .ssRun { send in
+      let friendID = state.editHelper.envelopeDetailProperty.friend.id
+      return .ssRun { [state = state] send in
         await send(.inner(.isLoading(true)))
         let updatedFriendID = try await network.editFriends(friendID, friendRequestBody)
-        await send(.async(.updateEnvelopes(friendID: updatedFriendID)))
-        await send(.inner(.isLoading(false)))
-      }
-
-    case let .updateEnvelopes(friendID):
-      guard let selectedCategoryItem = state.editHelper.eventSectionButtonHelper.selectedItem
-      else {
-        return .none
-      }
-
-      let customCategory = selectedCategoryItem.id == state.editHelper.eventSectionButtonHelper.isCustomItem?.id ?
-        state.editHelper.eventSectionButtonHelper.isCustomItem?.title : nil
-
-      let giftText: String = state.editHelper.giftEditProperty.gift
-      let queryGiftText: String? = giftText.isEmpty ? nil : giftText
-
-      let memoText: String = state.editHelper.memoEditProperty.memo
-      let queryMemoText: String? = memoText.isEmpty ? nil : memoText
-
-      let envelopeRequestBody = CreateAndUpdateEnvelopeRequest(
-        type: state.editHelper.envelopeDetailProperty.type,
-        friendId: friendID,
-        ledgerId: state.editHelper.envelopeDetailProperty.ledgerID,
-        amount: state.editHelper.priceProperty.price,
-        gift: queryGiftText,
-        memo: queryMemoText,
-        hasVisited: state.editHelper.visitedSectionButtonHelper.selectedItem?.isVisited,
-        handedOverAt: CustomDateFormatter.getFullDateString(from: state.editHelper.dateEditProperty.date),
-        category: .init(id: state.editHelper.eventSectionButtonHelper.selectedItem?.id ?? 0, customCategory: customCategory)
-      )
-
-      let envelopeID = state.editHelper.envelopeDetailProperty.id
-      return .ssRun { send in
-        await send(.inner(.isLoading(true)))
-        let envelopeProperty = try await network.editEnvelopes(envelopeID, envelopeRequestBody)
-        UpdateEnvelopeDetailPropertyPublisher.send(envelopeProperty)
+        try await updateEnvelope(state, friendID: updatedFriendID, send: send)
         await send(.inner(.isLoading(false)))
-        await send(.delegate(.tappedSaveButton(envelopeID: envelopeID)))
-        await dismiss()
       }
     }
   }
diff --git a/Projects/Feature/Sent/Sources/SpecificEnvelope/SpecificEnvelopeHistoryRouter/SpecificEnvelopeHistoryRouter.swift b/Projects/Feature/Sent/Sources/SpecificEnvelope/SpecificEnvelopeHistoryRouter/SpecificEnvelopeHistoryRouter.swift
index 780427b0..59bb6455 100644
--- a/Projects/Feature/Sent/Sources/SpecificEnvelope/SpecificEnvelopeHistoryRouter/SpecificEnvelopeHistoryRouter.swift
+++ b/Projects/Feature/Sent/Sources/SpecificEnvelope/SpecificEnvelopeHistoryRouter/SpecificEnvelopeHistoryRouter.swift
@@ -51,7 +51,7 @@ struct SpecificEnvelopeHistoryRouter {
   func handleEnvelopeDetailDelegateAction(state _: inout State, action: SpecificEnvelopeDetailReducer.Action.DelegateAction) -> Effect<Action> {
     switch action {
     case let .tappedEnvelopeEditButton(property):
-      return .ssRun { [id = property.id] _ in
+      return .ssRun { [id = property.envelope.id] _ in
         let editState = try await SpecificEnvelopeEditReducer.State(envelopeID: id)
         SpecificEnvelopeHistoryRouterPublisher.push(.specificEnvelopeHistoryEdit(editState))
       }