diff --git a/Source/Modules/InputHandler_HandleCandidate.swift b/Source/Modules/InputHandler_HandleCandidate.swift
index 9ac12335..a653b361 100644
--- a/Source/Modules/InputHandler_HandleCandidate.swift
+++ b/Source/Modules/InputHandler_HandleCandidate.swift
@@ -49,6 +49,12 @@ extension InputHandler {
       }
     }
 
+    // MARK: 簡碼候選時對 BackSpace 的特殊處理
+
+    if input.isBackSpace, prefs.cassetteEnabled, state.type == .ofInputting {
+      return handleBackSpace(input: input)
+    }
+
     // MARK: 取消選字 (Cancel Candidate)
 
     let cancelCandidateKey =
diff --git a/Source/Modules/InputHandler_HandleStates.swift b/Source/Modules/InputHandler_HandleStates.swift
index 5c44f656..b64cffd8 100644
--- a/Source/Modules/InputHandler_HandleStates.swift
+++ b/Source/Modules/InputHandler_HandleStates.swift
@@ -503,7 +503,15 @@ extension InputHandler {
     }
 
     switch isConsideredEmptyForNow {
-    case false: delegate.switchState(generateStateOfInputting())
+    case false:
+      var result = generateStateOfInputting()
+      // 針對 IMK 選字窗停用 `%quick` 特性，因為按鍵邏輯實在難以實作。
+      if prefs.cassetteEnabled, !prefs.useIMKCandidateWindow,
+         let fetched = currentLM.cassetteQuickSetsFor(key: calligrapher)
+      {
+        result.candidates = fetched.map { (keyArray: [""], value: $0.description) }
+      }
+      delegate.switchState(result)
     case true: delegate.switchState(IMEState.ofAbortion())
     }
     return true