diff --git a/src/idz/decoder/index.ts b/src/idz/decoder/index.ts
index 0979f24..d6f00cd 100644
--- a/src/idz/decoder/index.ts
+++ b/src/idz/decoder/index.ts
@@ -35,7 +35,10 @@ import { saveTimeAttack1, saveTimeAttack2 } from "./saveTimeAttack";
 import { saveTopic } from "./saveTopic";
 import { unlockProfile } from "./unlockProfile";
 import { updateProvisionalStoreRank } from "./updateProvisionalStoreRank";
-import { updateStoryClearNum } from "./updateStoryClearNum";
+import {
+  updateStoryClearNum1,
+  updateStoryClearNum2,
+} from "./updateStoryClearNum";
 import { RequestCode } from "./_defs";
 import { Request } from "../request";
 import { updateResult } from "./updateResult";
@@ -93,7 +96,8 @@ const funcList: ReaderFn[] = [
   unlockProfile,
   updateProvisionalStoreRank,
   updateResult,
-  updateStoryClearNum,
+  updateStoryClearNum1,
+  updateStoryClearNum2,
   updateTeamPoints,
   updateUiReport,
   updateUserLog,
diff --git a/src/idz/decoder/updateStoryClearNum.ts b/src/idz/decoder/updateStoryClearNum.ts
index 1d703f6..ae5ce8d 100644
--- a/src/idz/decoder/updateStoryClearNum.ts
+++ b/src/idz/decoder/updateStoryClearNum.ts
@@ -1,11 +1,29 @@
 import { RequestCode } from "./_defs";
-import { UpdateStoryClearNumRequest } from "../request/updateStoryClearNum";
+import {
+  UpdateStoryClearNumRequest1,
+  UpdateStoryClearNumRequest2,
+} from "../request/updateStoryClearNum";
 
-updateStoryClearNum.msgCode = 0x007f as RequestCode;
-updateStoryClearNum.msgLen = 0x0010;
+updateStoryClearNum1.msgCode = 0x007f as RequestCode;
+updateStoryClearNum1.msgLen = 0x0010;
 
-export function updateStoryClearNum(buf: Buffer): UpdateStoryClearNumRequest {
+export function updateStoryClearNum1(
+  buf: Buffer
+): UpdateStoryClearNumRequest1 {
   return {
     type: "update_story_clear_num_req",
+    format: 1,
+  };
+}
+
+updateStoryClearNum2.msgCode = 0x013d as RequestCode;
+updateStoryClearNum2.msgLen = 0x0010;
+
+export function updateStoryClearNum2(
+  buf: Buffer
+): UpdateStoryClearNumRequest2 {
+  return {
+    type: "update_story_clear_num_req",
+    format: 2,
   };
 }
diff --git a/src/idz/encoder/updateStoryClearNum.ts b/src/idz/encoder/updateStoryClearNum.ts
index 83b3039..63333e9 100644
--- a/src/idz/encoder/updateStoryClearNum.ts
+++ b/src/idz/encoder/updateStoryClearNum.ts
@@ -1,9 +1,36 @@
-import { UpdateStoryClearNumResponse } from "../response/updateStoryClearNum";
+import {
+  UpdateStoryClearNumResponse,
+  UpdateStoryClearNumResponse1,
+  UpdateStoryClearNumResponse2,
+} from "../response/updateStoryClearNum";
 
-export function updateStoryClearNum(res: UpdateStoryClearNumResponse) {
+export function updateStoryClearNum(res: UpdateStoryClearNumResponse): Buffer {
+  switch (res.format) {
+    case 1:
+      return updateStoryClearNum1(res);
+
+    case 2:
+      return updateStoryClearNum2(res);
+
+    default:
+      const exhaust: never = res;
+
+      throw new Error(`Unsupported data format ${res["format"]}`);
+  }
+}
+
+function updateStoryClearNum1(res: UpdateStoryClearNumResponse1): Buffer {
   const buf = Buffer.alloc(0x0220);
 
   buf.writeInt16LE(0x0080, 0x0000);
 
   return buf;
 }
+
+function updateStoryClearNum2(res: UpdateStoryClearNumResponse2): Buffer {
+  const buf = Buffer.alloc(0x04f0);
+
+  buf.writeInt16LE(0x013e, 0x0000);
+
+  return buf;
+}
diff --git a/src/idz/handler/updateStoryClearNum.ts b/src/idz/handler/updateStoryClearNum.ts
index 2b4970e..29d88ea 100644
--- a/src/idz/handler/updateStoryClearNum.ts
+++ b/src/idz/handler/updateStoryClearNum.ts
@@ -8,5 +8,6 @@ export function updateStoryClearNum(
 ): UpdateStoryClearNumResponse {
   return {
     type: "update_story_clear_num_res",
+    format: req.format as any,
   };
 }
diff --git a/src/idz/request/updateStoryClearNum.ts b/src/idz/request/updateStoryClearNum.ts
index ba28fd8..b3349a1 100644
--- a/src/idz/request/updateStoryClearNum.ts
+++ b/src/idz/request/updateStoryClearNum.ts
@@ -1,3 +1,17 @@
-export interface UpdateStoryClearNumRequest {
+interface UpdateStoryClearNumRequestBase {
   type: "update_story_clear_num_req";
 }
+
+export interface UpdateStoryClearNumRequest1
+  extends UpdateStoryClearNumRequestBase {
+  format: 1;
+}
+
+export interface UpdateStoryClearNumRequest2
+  extends UpdateStoryClearNumRequestBase {
+  format: 2;
+}
+
+export type UpdateStoryClearNumRequest =
+  | UpdateStoryClearNumRequest1
+  | UpdateStoryClearNumRequest2;
diff --git a/src/idz/response/updateStoryClearNum.ts b/src/idz/response/updateStoryClearNum.ts
index 190fbfc..ecf3096 100644
--- a/src/idz/response/updateStoryClearNum.ts
+++ b/src/idz/response/updateStoryClearNum.ts
@@ -1,4 +1,18 @@
-export interface UpdateStoryClearNumResponse {
+interface UpdateStoryClearNumResponseBase {
   type: "update_story_clear_num_res";
   // TODO, looks like a table of 9 * 10 u32 fields
 }
+
+export interface UpdateStoryClearNumResponse1
+  extends UpdateStoryClearNumResponseBase {
+  format: 1;
+}
+
+export interface UpdateStoryClearNumResponse2
+  extends UpdateStoryClearNumResponseBase {
+  format: 2;
+}
+
+export type UpdateStoryClearNumResponse =
+  | UpdateStoryClearNumResponse1
+  | UpdateStoryClearNumResponse2;