diff --git a/M02_MasterTemplete/CostFlow/M02_CF_FuncPanel.ts b/M02_MasterTemplete/CostFlow/M02_CF_FuncPanel.ts
index f43861d16..84dad666f 100644
--- a/M02_MasterTemplete/CostFlow/M02_CF_FuncPanel.ts
+++ b/M02_MasterTemplete/CostFlow/M02_CF_FuncPanel.ts
@@ -24,7 +24,7 @@ const TEXT = {
   GotHint: ["누르거나 칸에 끌어 놓음", "Click, or drag onto a cell"],
   NoGot: ["선으로 들어온 알약이 없음", "No pill has come in yet"],
   Placed: ["놓임", "placed"],
-  Free: ["놓을 칸 없음", "not placed"],
+  Free: ["아직 안 놓은 알약", "not placed yet"],
   Busy: ["이미 쓰는 칸", "That cell is already in use"],
   Locked: [
     "받은 알약이 놓인 칸은 선의 값으로 채워짐 — 직접 못 고침",
@@ -260,6 +260,8 @@ function incoming(st: State): { port: string; unit: string }[] {
           "-");
     out.set(l.to.name, unit || "-");
   }
+  // 선 없이 칸 없는 받는 알약만 있어도 보임(새 함수 상자가 먼저 만든 자리)
+  for (const i of funcOf(st)?.inputs ?? []) if (!out.has(i.port)) out.set(i.port, "-");
   return [...out].map(([port, unit]) => ({ port, unit }));
 }
 
@@ -273,7 +275,7 @@ function problems(st: State): string[] {
     }
   }
   for (const p of incoming(st)) {
-    if (!f.inputs.some((i) => i.port === p.port)) out.push(`${p.port}${tf("Unplaced")}`);
+    if (!f.inputs.some((i) => i.port === p.port && i.cell)) out.push(`${p.port}${tf("Unplaced")}`);
   }
   if (!f.output.cell) out.push(tf("OutNone"));
   return out;
@@ -285,12 +287,13 @@ function applyMarks(st: State): void {
   const f = funcOf(st);
   if (!f) return;
   const marks = new Map<string, { kind: string; label: string }>();
-  for (const i of f.inputs) marks.set(i.cell, { kind: "in", label: `${tf("Got")} ${i.port}` });
+  for (const i of f.inputs.filter((x) => x.cell))
+    marks.set(i.cell, { kind: "in", label: `${tf("Got")} ${i.port}` });
   for (const v of f.variables)
     if (v.cell) marks.set(v.cell, { kind: "var", label: `${tf("Vars")} ${v.name}` });
   if (f.output.cell)
     marks.set(f.output.cell, { kind: "out", label: `${tf("OutNow")} ${f.output.name}` });
-  const locked = new Set(f.inputs.map((i) => i.cell));
+  const locked = new Set(f.inputs.filter((i) => i.cell).map((i) => i.cell));
   const list = problems(st);
   const bad = new Set(list.map((p) => p.split(" ")[0]));
   for (const c of st.parts.sheet.querySelectorAll<HTMLElement>(".aislo-cell")) {
@@ -581,7 +584,7 @@ function onBook(st: State, book: Workbook): void {
   if (!f) return;
   const sheet = plain(structuredClone(book.시트[0]));
   const hit = f.inputs.find(
-    (i) => JSON.stringify(f.sheet.칸[i.cell]) !== JSON.stringify(sheet.칸[i.cell]),
+    (i) => i.cell && JSON.stringify(f.sheet.칸[i.cell]) !== JSON.stringify(sheet.칸[i.cell]),
   );
   if (hit) {
     showToast(tf("Locked"), "error");