diff --git a/trunk/ConsoleDataMigration/sources/ConsoleRestore/ActCompleter.cpp b/trunk/ConsoleDataMigration/sources/ConsoleRestore/ActCompleter.cpp
index 2ab8b9c..1a06593 100644
--- a/trunk/ConsoleDataMigration/sources/ConsoleRestore/ActCompleter.cpp
+++ b/trunk/ConsoleDataMigration/sources/ConsoleRestore/ActCompleter.cpp
@@ -24,6 +24,7 @@
 #include <nn/actslv/actslv_Api.h>
 #include <nn/fs/fs_ApiSysSaveData.h>
 #include <nn/cfg/CTR/cfg_ApiSys.h>
+#include <nn/drivers/aes/CTR/ARM946ES/driverAes_Types.h>
 
 #include "AgeChecker.h"
 
@@ -215,9 +216,11 @@ nn::Result ActCompleter::SaveApprovalId()
     // Cave-accountのファイル書き込み設定
     const char* const SYSTEM_SAVEDATA_ARCHIVE_NAME = "ssave:";
     const char* const CAVE_FILE_NAME = "ssave:/s.bin";
-    const size_t CAVE_FILE_SIZE = 143360;
     const u32 APPROVAL_ID_OFFSET = 0x11000;
 
+    // Cave-accountのデフォルト値
+    const char* const CAVE_DEFAULT_FILE = "rom:/CAVE_ACCOUNT_save_0.bin";
+
     NN_UTIL_RETURN_IF_FAILED(
             nn::fs::CreateSystemSaveData(CAVE_ACCOUNT_US_SAVEDATA_ID, MAX_FILES, MAX_DIRECTORIES, SAVE_DATA_SIZE, true));
 
@@ -227,23 +230,34 @@ nn::Result ActCompleter::SaveApprovalId()
     {
         nn::fs::FileOutputStream out(CAVE_FILE_NAME, true);
 
-        // ファイルサイズ分のダミーデータを書く
-        common::HeapManager dummyWriteData(CAVE_FILE_SIZE);
-        void* buf = dummyWriteData.GetAddr();
+        // デフォルトデータを書く
+        nn::fs::FileInputStream defaultFile;
+        NN_UTIL_RETURN_IF_FAILED_1(
+                defaultFile.TryInitialize(CAVE_DEFAULT_FILE),
+                nn::fs::Unmount(SYSTEM_SAVEDATA_ARCHIVE_NAME));
+
+        s64 fileSize = defaultFile.GetSize();
+        common::HeapManager heap(fileSize, AES_BLOCK_SIZE);
+        void* buf = heap.GetAddr();
         if(buf != NULL)
         {
-            std::memset(buf, 0, CAVE_FILE_SIZE);
+            s32 readSize;
+            NN_UTIL_RETURN_IF_FAILED_1(
+                    defaultFile.TryRead(&readSize, buf, fileSize),
+                    nn::fs::Unmount(SYSTEM_SAVEDATA_ARCHIVE_NAME));
             s32 writeSize;
             NN_UTIL_RETURN_IF_FAILED_1(
-                    out.TryWrite(&writeSize, buf, CAVE_FILE_SIZE, true),
+                    out.TryWrite(&writeSize, buf, fileSize, true),
                     nn::fs::Unmount(SYSTEM_SAVEDATA_ARCHIVE_NAME));
         }
         else
         {
+            nn::fs::Unmount(SYSTEM_SAVEDATA_ARCHIVE_NAME);
             return nn::Result(nn::Result::LEVEL_FATAL, nn::Result::SUMMARY_OUT_OF_RESOURCE, nn::Result::MODULE_COMMON,
                     nn::Result::DESCRIPTION_OUT_OF_MEMORY);
         }
 
+        // 所定の位置までシークしてApproval IDを書く
         NN_UTIL_RETURN_IF_FAILED_1(
                 out.TrySeek(APPROVAL_ID_OFFSET, nn::fs::POSITION_BASE_BEGIN),
                 nn::fs::Unmount(SYSTEM_SAVEDATA_ARCHIVE_NAME));
@@ -252,6 +266,7 @@ nn::Result ActCompleter::SaveApprovalId()
                 out.TryWrite(&writeSize, &s_ApprovalId, sizeof(s_ApprovalId), true),
                 nn::fs::Unmount(SYSTEM_SAVEDATA_ARCHIVE_NAME));
 
+        // コミットする
         NN_UTIL_RETURN_IF_FAILED_1(
                 nn::fs::CommitSystemSaveData(SYSTEM_SAVEDATA_ARCHIVE_NAME),
                 nn::fs::Unmount(SYSTEM_SAVEDATA_ARCHIVE_NAME));
diff --git a/trunk/ConsoleDataMigration/sources/common/romfiles/CAVE_ACCOUNT_save_0.bin b/trunk/ConsoleDataMigration/sources/common/romfiles/CAVE_ACCOUNT_save_0.bin
new file mode 100644
index 0000000..9a7009d
Binary files /dev/null and b/trunk/ConsoleDataMigration/sources/common/romfiles/CAVE_ACCOUNT_save_0.bin differ