diff --git a/assets/keylayout/ko_kr_2set_ksx5002_alt.ime b/assets/keylayout/ko_kr_2set_ksx5002_alt.ime
index 708d66b23..a5289c4c5 100644
--- a/assets/keylayout/ko_kr_2set_ksx5002_alt.ime
+++ b/assets/keylayout/ko_kr_2set_ksx5002_alt.ime
@@ -396,6 +396,7 @@ return Object.freeze({"n":"두벌식 수정 표준","v":"one","c":"CuriousTo\uA7
         else if (states.buf[bufIndex] !== undefined) {
             let oldbufstr = bufDebugStringify(states.buf)
             let sendout = ''
+            // e.g. 닳 -> 달해
             if (vowelCollision && isThisCharJongseongDigraph(states.buf[2])) {
                 let digraphs = detachJongseongDigraph[states.buf[2]]
                 let newbuf = [digraphs[1], s]
@@ -403,24 +404,34 @@ return Object.freeze({"n":"두벌식 수정 표준","v":"one","c":"CuriousTo\uA7
                 sendout = bufAssemble()
                 states.buf = newbuf
 
-                return ["0", bufAssemble()]
+//                console.log(`rearr1: ${bufDebugStringify(states.buf)} -> 1,${sendout}${bufAssemble()}`)
+                return ["1", sendout + bufAssemble()]
             }
-            else if (vowelCollision) {
+            // e.g. 둣 -> 두사
+            else if (vowelCollision && states.buf[2]) {
                 let newbuf = [states.buf[2], s]
                 states.buf = [states.buf[0], states.buf[1]]
                 sendout = bufAssemble()
                 states.buf = newbuf
 
-                return ["0", bufAssemble()]
+//                console.log(`rearr2: ${bufDebugStringify(states.buf)} -> 1,${sendout}${bufAssemble()}`)
+                return ["1", sendout + bufAssemble()]
             }
+            // e.g. 가 -> 가ㅏ (error; buf: ㄱ ㅏ · -> · ㅏ ·, that illegally allows C ㅏ · if any choseong is directly followed)
+            else if (vowelCollision) {
+                reset()
+//                console.log(`rearr4: 0,${s}`)
+                return ["0", s]
+            }
+            // Choseong after finalised IPK-syllable (ㅇ as in 밥이)
             else {
-                sendout = bufAssemble()
                 reset()
                 if (bufIndex == 2)
                     states.buf[0] = s
                 else
                     states.buf[bufIndex] = s
 
+//                console.log(`rearr3: ${bufDebugStringify(states.buf)} -> 0,${bufAssemble()}`)
                 return ["0", bufAssemble()]
             }
         }
@@ -428,20 +439,33 @@ return Object.freeze({"n":"두벌식 수정 표준","v":"one","c":"CuriousTo\uA7
             let bufferEmpty = (states.buf[0] === undefined)
             states.buf[bufIndex] = s
 
-            if (bufferEmpty) {
-//                console.log(`assembling: ${bufDebugStringify(states.buf)} -> 0,${bufAssemble()}`)
+            // e.g. 2nd ㅏ as in 가ㅏㅏㅏㅏㅏㅏㅏㅏㅏㅏㅏㅏㅏㅏㅏㅏ
+            // this merely cuts the "loop" where 4,6,8...th ㅏ are also inflicted
+            //
+            if (isVowel(states.buf[0]) && isVowel(states.buf[1])) {
+                reset()
+//                console.log(`assem0: 0,${s}`)
+                return ["0", s]
+            }
+            // e.g. ㅁ and ㅂ as in 물과␣백두산
+            else if (bufferEmpty) {
+//                console.log(`assem1: ${bufDebugStringify(states.buf)} -> 0,${bufAssemble()}`)
                 return ["0", bufAssemble()]
             }
+            // e.g. ㅜ ㄹ ㅐ ㄱ ㅜ ㅏ ㄴ as in 물과␣백두산
             else {
-//                console.log(`assembling: ${bufDebugStringify(states.buf)} -> 1,${bufAssemble()}`)
+//                console.log(`assem2: ${bufDebugStringify(states.buf)} -> 1,${bufAssemble()}`)
                 return ["1", bufAssemble()]
             }
         }
+
+//        console.log(`assem-digraph: ${bufDebugStringify(states.buf)} -> 1,${bufAssemble()}`)
+        return ["1", bufAssemble()]
     }
     else {
         reset()
         // directly print out the character without using the buffer
-//        console.log(`sending1 out: ${s}`)
+//        console.log(`sending1 out: 0,${s}`)
         return ["0", s]
     }
 },
diff --git a/assets/keylayout/ko_kr_3set_shin_p2.ime b/assets/keylayout/ko_kr_3set_shin_p2.ime
index e890ebdde..f7c29d015 100644
--- a/assets/keylayout/ko_kr_3set_shin_p2.ime
+++ b/assets/keylayout/ko_kr_3set_shin_p2.ime
@@ -468,6 +468,7 @@ return Object.freeze({"n":"신세벌식 P2","v":"one","c":"CuriousTo\uA75Bvald",
             }
         }
 
+//        console.log(`assem-digraph: ${bufDebugStringify(states.buf)} -> 1,${bufAssemble()}`)
         return ["1", bufAssemble()]
     }
     else {
diff --git a/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt b/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
index 47e81276c..43e098804 100644
--- a/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
+++ b/src/net/torvald/terrarum/ui/UIItemTextLineInput.kt
@@ -9,6 +9,7 @@ import com.badlogic.gdx.graphics.g2d.SpriteBatch
 import com.badlogic.gdx.graphics.glutils.FrameBuffer
 import com.jme3.math.FastMath
 import net.torvald.terrarum.*
+import net.torvald.terrarum.App.printdbg
 import net.torvald.terrarum.gamecontroller.*
 import net.torvald.terrarum.utils.Clipboard
 import net.torvald.terrarumsansbitmap.gdx.CodepointSequence
@@ -182,7 +183,7 @@ class UIItemTextLineInput(
             while (cursorX > 0) {
                 cursorX -= 1
                 val charDeleted = textbuf.removeAt(cursorX)
-//                printdbg(this, "$dbgprn)charDeleted=${charDeleted.toCharInfo()}")
+                printdbg(this, "$dbgprn)charDeleted=${charDeleted.toCharInfo()}")
 
                 if (charDeleted !in 0x1160..0x11FF) break
             }
@@ -382,8 +383,8 @@ class UIItemTextLineInput(
 
     private fun endComposing() {
         getIME()?.let {
+            val s = it.endCompose()
             if (it.config.mode != TerrarumIMEMode.REWRITE) {
-                val s = it.endCompose()
                 paste(s.toCodePoints())
             }
         }