diff --git a/src/client/component/filesystem.cpp b/src/client/component/filesystem.cpp
index aaa813f..d69932f 100644
--- a/src/client/component/filesystem.cpp
+++ b/src/client/component/filesystem.cpp
@@ -33,7 +33,7 @@ namespace filesystem
 		auto _ = gsl::finally([=] {
 			utils::memory::free(buffer);
 			avs2::fs_close(file);
-		});
+			});
 
 		if (size >= 0)
 		{
@@ -73,15 +73,12 @@ namespace filesystem
 	public:
 		void post_avs_init() override
 		{
-			if (utils::flags::has_flag("disable_ifs_hook"))
-				return;
-
 			utils::nt::library self{ };
 
 			auto g = game::environment::get_game();
 			std::filesystem::path data_dir = self.get_folder();
 			data_dir /= "assets";
-			
+
 			if (g == launcher::game::iidx)
 				data_dir /= "iidx";
 			else if (g == launcher::game::sdvx)
@@ -92,13 +89,12 @@ namespace filesystem
 			static auto abs_data_path = std::filesystem::absolute(data_dir).generic_string();
 
 			if (!std::filesystem::exists(data_dir))
-			{
 				printf("warning: data dir %s not exists\n", abs_data_path.data());
-				init(nullptr);
-				return;
-			}
-			
-			init(abs_data_path.data());
+
+			if (utils::flags::has_flag("disable_ifs_hook"))
+				init(std::filesystem::exists(data_dir) ? nullptr : abs_data_path.data());
+
+			avs2::fs_mount("/laochan", abs_data_path.data(), "fs", const_cast<char*>("vf=1,posix=1"));
 		}
 	};
 }
diff --git a/src/client/component/iidx/omnimix.cpp b/src/client/component/iidx/omnimix.cpp
index 1d23439..c996352 100644
--- a/src/client/component/iidx/omnimix.cpp
+++ b/src/client/component/iidx/omnimix.cpp
@@ -33,7 +33,7 @@ namespace iidx::omnimix
 
 	std::vector<json> get_additional_mdatas()
 	{
-		auto dir = avs2::fs_opendir("./music_datas");
+		auto dir = avs2::fs_opendir("/laochan/music_datas");
 
 		std::vector<json> result;
 
@@ -42,7 +42,7 @@ namespace iidx::omnimix
 
 		for (auto file = avs2::fs_readdir(dir); file; file = avs2::fs_readdir(dir))
 		{
-			filesystem::file mdata_file { utils::string::va("./music_datas/%s", file) };
+			filesystem::file mdata_file { utils::string::va("/laochan/music_datas/%s", file) };
 			if (!mdata_file.exists())
 				continue;
 
diff --git a/src/client/component/iidx/overlay.cpp b/src/client/component/iidx/overlay.cpp
index d359be4..1806faa 100644
--- a/src/client/component/iidx/overlay.cpp
+++ b/src/client/component/iidx/overlay.cpp
@@ -114,19 +114,19 @@ namespace iidx::overlay
 
 		void init()
 		{
-			textures::background = load_texture("/data/notes_radar/nradar_waku02.png");
-			textures::star = load_texture("/data/notes_radar/radar_star.png");
-			textures::labels[4] = load_texture("/data/notes_radar/nradar_notes.png");
-			textures::labels[5] = load_texture("/data/notes_radar/nradar_peak.png");
-			textures::labels[0] = load_texture("/data/notes_radar/nradar_scratch.png");
-			textures::labels[1] = load_texture("/data/notes_radar/nradar_sof_lan.png");
-			textures::labels[2] = load_texture("/data/notes_radar/nradar_charge.png");
-			textures::labels[3] = load_texture("/data/notes_radar/nradar_chord.png");
-			textures::no_data = load_texture("/data/notes_radar/nradar_nodata.png");
-
-			filesystem::file radar_file{ "/data/radar_data.json" };
+			textures::background = load_texture("/laochan/notes_radar/nradar_waku02.png");
+			textures::star = load_texture("/laochan/notes_radar/radar_star.png");
+			textures::labels[4] = load_texture("/laochan/notes_radar/nradar_notes.png");
+			textures::labels[5] = load_texture("/laochan/notes_radar/nradar_peak.png");
+			textures::labels[0] = load_texture("/laochan/notes_radar/nradar_scratch.png");
+			textures::labels[1] = load_texture("/laochan/notes_radar/nradar_sof_lan.png");
+			textures::labels[2] = load_texture("/laochan/notes_radar/nradar_charge.png");
+			textures::labels[3] = load_texture("/laochan/notes_radar/nradar_chord.png");
+			textures::no_data = load_texture("/laochan/notes_radar/nradar_nodata.png");
+
+			filesystem::file radar_file{ "/laochan/radar_data.json" };
 			if (!radar_file.exists()) {
-				printf("E:overlay: can not load /data/radar_data.json\n");
+				printf("E:overlay: can not load /laochan/radar_data.json\n");
 				return;
 			}
 
@@ -286,9 +286,9 @@ namespace iidx::overlay
 
 		void init()
 		{
-			filesystem::file diff_file{ "/data/difficulty_data.json" };
+			filesystem::file diff_file{ "/laochan/difficulty_data.json" };
 			if (!diff_file.exists()) {
-				printf("E:overlay: can not load /data/difficulty_data.json\n");
+				printf("E:overlay: can not load /laochan/difficulty_data.json\n");
 				return;
 			}