diff --git a/Source/Modules/ControllerModules/NSEventExtension.swift b/Source/Modules/ControllerModules/NSEventExtension.swift
index 9dde44ce..1bd242a9 100644
--- a/Source/Modules/ControllerModules/NSEventExtension.swift
+++ b/Source/Modules/ControllerModules/NSEventExtension.swift
@@ -8,7 +8,36 @@
 
 import Cocoa
 
-// MARK: - NSEvent Extension
+// MARK: - NSEvent Extension - Reconstructors
+
+extension NSEvent {
+  public func reinitiate(
+    with type: NSEvent.EventType? = nil,
+    location: NSPoint? = nil,
+    modifierFlags: NSEvent.ModifierFlags? = nil,
+    timestamp: TimeInterval? = nil,
+    windowNumber: Int? = nil,
+    characters: String? = nil,
+    charactersIgnoringModifiers: String? = nil,
+    isARepeat: Bool? = nil,
+    keyCode: UInt16? = nil
+  ) -> NSEvent? {
+    NSEvent.keyEvent(
+      with: type ?? self.type,
+      location: location ?? locationInWindow,
+      modifierFlags: modifierFlags ?? self.modifierFlags,
+      timestamp: timestamp ?? self.timestamp,
+      windowNumber: windowNumber ?? self.windowNumber,
+      context: nil,
+      characters: characters ?? self.characters ?? "",
+      charactersIgnoringModifiers: charactersIgnoringModifiers ?? self.characters ?? "",
+      isARepeat: isARepeat ?? self.isARepeat,
+      keyCode: keyCode ?? self.keyCode
+    )
+  }
+}
+
+// MARK: - NSEvent Extension - InputSignalProtocol
 
 extension NSEvent: InputSignalProtocol {
   public var isASCIIModeInput: Bool { ctlInputMethod.isASCIIModeSituation }
diff --git a/Source/Modules/ControllerModules/ctlInputMethod_Core.swift b/Source/Modules/ControllerModules/ctlInputMethod_Core.swift
index a18d2b27..d8c90ca0 100644
--- a/Source/Modules/ControllerModules/ctlInputMethod_Core.swift
+++ b/Source/Modules/ControllerModules/ctlInputMethod_Core.swift
@@ -226,20 +226,7 @@ class ctlInputMethod: IMKInputController {
       // Shift+Enter 是個特殊情形，不提前攔截處理的話、會有垃圾參數傳給 delegate 的 keyHandler 從而崩潰。
       // 所以這裡直接將 Shift Flags 清空。
       if event.isShiftHold, event.isEnter {
-        guard
-          let newEvent = NSEvent.keyEvent(
-            with: event.type,
-            location: event.locationInWindow,
-            modifierFlags: [],
-            timestamp: event.timestamp,
-            windowNumber: event.windowNumber,
-            context: nil,
-            characters: event.characters ?? "",
-            charactersIgnoringModifiers: event.charactersIgnoringModifiers ?? event.characters ?? "",
-            isARepeat: event.isARepeat,
-            keyCode: event.keyCode
-          )
-        else {
+        guard let newEvent = event.reinitiate(modifierFlags: []) else {
           NSSound.beep()
           return true
         }
@@ -249,20 +236,8 @@ class ctlInputMethod: IMKInputController {
 
       // 聯想詞選字。
       if let newChar = ctlCandidateIMK.defaultIMKSelectionKey[event.keyCode], event.isShiftHold,
-        isAssociatedPhrasesState
+        isAssociatedPhrasesState, let newEvent = event.reinitiate(modifierFlags: [], characters: newChar)
       {
-        let newEvent = NSEvent.keyEvent(
-          with: event.type,
-          location: event.locationInWindow,
-          modifierFlags: [],
-          timestamp: event.timestamp,
-          windowNumber: event.windowNumber,
-          context: nil,
-          characters: newChar,
-          charactersIgnoringModifiers: event.charactersIgnoringModifiers ?? event.characters ?? "",
-          isARepeat: event.isARepeat,
-          keyCode: event.keyCode
-        )
         ctlCandidateCurrent.handleKeyboardEvent(newEvent)
       }
 
diff --git a/Source/Modules/UIModules/CandidateUI/ctlCandidateIMK.swift b/Source/Modules/UIModules/CandidateUI/ctlCandidateIMK.swift
index 7ce9eb91..bae2b48d 100644
--- a/Source/Modules/UIModules/CandidateUI/ctlCandidateIMK.swift
+++ b/Source/Modules/UIModules/CandidateUI/ctlCandidateIMK.swift
@@ -229,18 +229,7 @@ public class ctlCandidateIMK: IMKCandidates, ctlCandidateProtocol {
       if let newChar = ctlCandidateIMK.defaultIMKSelectionKey[event.keyCode] {
         /// 根據 KeyCode 重新換算一下選字鍵的 NSEvent，糾正其 Character 數值。
         /// 反正 IMK 選字窗目前也沒辦法修改選字鍵。
-        let newEvent = NSEvent.keyEvent(
-          with: event.type,
-          location: event.locationInWindow,
-          modifierFlags: event.modifierFlags,
-          timestamp: event.timestamp,
-          windowNumber: event.windowNumber,
-          context: nil,
-          characters: newChar,
-          charactersIgnoringModifiers: event.charactersIgnoringModifiers ?? event.characters ?? "",
-          isARepeat: event.isARepeat,
-          keyCode: event.keyCode
-        )
+        let newEvent = event.reinitiate(characters: newChar)
         if let newEvent = newEvent {
           if mgrPrefs.useSCPCTypingMode, delegate.isAssociatedPhrasesState {
             // 註：input.isShiftHold 已經在 ctlInputMethod.handle() 內處理，因為在那邊處理才有效。
@@ -300,17 +289,6 @@ extension ctlCandidateIMK {
     let mapNumPadKeyCodeTranslation: [UInt16: UInt16] = [
       83: 18, 84: 19, 85: 20, 86: 21, 87: 23, 88: 22, 89: 26, 91: 28, 92: 25,
     ]
-    return NSEvent.keyEvent(
-      with: event.type,
-      location: event.locationInWindow,
-      modifierFlags: event.modifierFlags,
-      timestamp: event.timestamp,
-      windowNumber: event.windowNumber,
-      context: nil,
-      characters: event.characters ?? "",
-      charactersIgnoringModifiers: event.charactersIgnoringModifiers ?? event.characters ?? "",
-      isARepeat: event.isARepeat,
-      keyCode: mapNumPadKeyCodeTranslation[event.keyCode] ?? event.keyCode
-    )
+    return event.reinitiate(keyCode: mapNumPadKeyCodeTranslation[event.keyCode] ?? event.keyCode)
   }
 }