diff --git a/CMakeLists.txt b/CMakeLists.txt
index 51f5e3edf4..bd13c68b32 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -64,8 +64,8 @@ endif (BUILD_TEST)
 
 find_package(OpenCV REQUIRED COMPONENTS core imgproc)
 find_package(ZLIB REQUIRED)
-find_package(FastDeploy REQUIRED)
-target_link_libraries(MaaCore ${OpenCV_LIBS} FastDeploy::FastDeploy ZLIB::ZLIB header_only_libraries)
+find_package(MaaDerpLearning REQUIRED)
+target_link_libraries(MaaCore ${OpenCV_LIBS} MaaDerpLearning ZLIB::ZLIB header_only_libraries)
 
 if(WIN32)
     target_link_libraries(MaaCore ws2_32)
diff --git a/src/MaaCore/Config/Miscellaneous/OcrPack.cpp b/src/MaaCore/Config/Miscellaneous/OcrPack.cpp
index d6f6a85b05..063437edca 100644
--- a/src/MaaCore/Config/Miscellaneous/OcrPack.cpp
+++ b/src/MaaCore/Config/Miscellaneous/OcrPack.cpp
@@ -15,23 +15,13 @@ ASST_SUPPRESS_CV_WARNINGS_END
 #include "Utils/Platform.hpp"
 #include "Utils/Ranges.hpp"
 #include "Utils/StringMisc.hpp"
+#include "Utils/File.hpp"
 
-#ifdef _WIN32
-#include <format>
-static std::filesystem::path prepare_paddle_dir(const std::filesystem::path& dir, bool* is_temp);
-#else
-static std::filesystem::path prepare_paddle_dir(const std::filesystem::path& dir, bool* is_temp)
-{
-    *is_temp = false;
-    return dir;
-}
-#endif
 
 asst::OcrPack::OcrPack()
-    : m_ocr_option(std::make_unique<fastdeploy::RuntimeOption>()), m_det(nullptr), m_rec(nullptr), m_ocr(nullptr)
+    : m_det(nullptr), m_rec(nullptr), m_ocr(nullptr)
 {
     LogTraceFunction;
-    m_ocr_option->UseOrtBackend();
 }
 
 asst::OcrPack::~OcrPack()
@@ -44,12 +34,10 @@ bool asst::OcrPack::load(const std::filesystem::path& path)
     LogTraceFunction;
     Log.info("load", path);
 
-    bool use_temp_dir = false;
-    auto paddle_dir = prepare_paddle_dir(path, &use_temp_dir);
+    auto& paddle_dir = path;
 
-    if (paddle_dir.empty() || !std::filesystem::exists(paddle_dir)) {
-        return false;
-    }
+    fastdeploy::RuntimeOption option;
+    option.UseOrtBackend();
 
     do {
         using namespace asst::utils::path_literals;
@@ -62,9 +50,9 @@ bool asst::OcrPack::load(const std::filesystem::path& path)
         const auto rec_label_file = rec_dir / "keys.txt"_p;
 
         if (std::filesystem::exists(dst_model_file)) {
-            m_det = std::make_unique<fastdeploy::vision::ocr::DBDetector>(
-                asst::utils::path_to_ansi_string(dst_model_file), std::string(), *m_ocr_option,
-                fastdeploy::ModelFormat::ONNX);
+            auto det_model = asst::utils::read_file<std::string>(dst_model_file);
+            option.SetModelBuffer(det_model.data(), det_model.size(), nullptr, 0, fastdeploy::ModelFormat::ONNX);
+            m_det = std::make_unique<fastdeploy::vision::ocr::DBDetector>("dummy.onnx", std::string(), option, fastdeploy::ModelFormat::ONNX);
         }
         else if (!m_det) {
             break;
@@ -72,9 +60,10 @@ bool asst::OcrPack::load(const std::filesystem::path& path)
         // else 沿用原来的模型
 
         if (std::filesystem::exists(rec_model_file) && std::filesystem::exists(rec_label_file)) {
-            m_rec = std::make_unique<fastdeploy::vision::ocr::Recognizer>(
-                asst::utils::path_to_ansi_string(rec_model_file), std::string(),
-                asst::utils::path_to_ansi_string(rec_label_file), *m_ocr_option, fastdeploy::ModelFormat::ONNX);
+            auto rec_model = asst::utils::read_file<std::string>(rec_model_file);
+            auto label = asst::utils::read_file<std::string>(rec_label_file);
+            option.SetModelBuffer(rec_model.data(), rec_model.size(), nullptr, 0, fastdeploy::ModelFormat::ONNX);
+            m_rec = std::make_unique<fastdeploy::vision::ocr::Recognizer>("dummy.onnx", std::string(), label, option, fastdeploy::ModelFormat::ONNX);
         }
         else if (!m_rec) {
             break;
@@ -89,15 +78,6 @@ bool asst::OcrPack::load(const std::filesystem::path& path)
         }
     } while (false);
 
-    if (use_temp_dir) {
-        // files can be removed after load
-        std::thread([paddle_dir]() {
-            for (int i = 0; i < 50; i++) {
-                if (std::filesystem::remove(paddle_dir)) break;
-                std::this_thread::sleep_for(std::chrono::milliseconds(20));
-            }
-        }).detach();
-    }
 
     return m_det != nullptr && m_rec != nullptr && m_ocr != nullptr && m_det->Initialized() && m_rec->Initialized() &&
            m_ocr->Initialized();
@@ -184,61 +164,3 @@ std::vector<asst::TextRect> asst::OcrPack::recognize(const cv::Mat& image, const
     Log.trace("OcrPack::recognize | proc:", proced_result);
     return proced_result;
 }
-
-#ifdef _WIN32
-
-static std::filesystem::path prepare_paddle_dir(const std::filesystem::path& dir, bool* is_temp)
-{
-    static std::atomic<uint64_t> id {};
-
-    *is_temp = false;
-    auto is_ascii = [](const std::filesystem::path& path) {
-        return asst::ranges::all_of(path.wstring(), [](auto ch) { return ch < 127; });
-    };
-
-    if (is_ascii(dir)) {
-        // can be passed to paddle via path_to_ansi_string
-        return dir;
-    }
-    // fallback: create junction (reparse point) in user temp directory
-    std::filesystem::path tempdir = std::filesystem::temp_directory_path();
-    if (!is_ascii(tempdir)) {
-        // 临时目录（如 C:\Users\XXX\AppData\Local\Temp）也是中文路径，无法使用
-        asst::Log.warn("failed to escape unicode path: temp dir cannot be escaped", tempdir);
-        // 只能随地拉屎了。这里使用盘符根目录
-        tempdir = dir.root_path();
-    }
-
-    auto pid = GetCurrentProcessId();
-    while (true) {
-        auto dirname = std::format(L"MaaLink-{}-{}", pid, id++);
-        auto linkdir = tempdir / dirname;
-        asst::Log.info("tempdir", tempdir, "linkdir", linkdir);
-
-        if (CreateDirectoryW(linkdir.c_str(), nullptr)) {
-            auto success = asst::win32::SetDirectoryReparsePoint(linkdir, dir);
-            if (success) {
-                *is_temp = true;
-                return linkdir;
-            }
-            else {
-                asst::Log.error("failed to escape unicode path: failed to create junction");
-                return {};
-            }
-        }
-        else {
-            auto err = GetLastError();
-            if (err == ERROR_ALREADY_EXISTS) {
-                // try next id
-                continue;
-            }
-            else {
-                // cannot create link, no luck
-                asst::Log.error("failed to escape unicode path: failed to create junction");
-                return {};
-            }
-        }
-    }
-}
-
-#endif
diff --git a/src/MaaCore/Config/Miscellaneous/OcrPack.h b/src/MaaCore/Config/Miscellaneous/OcrPack.h
index 5b77486a9b..00633eb880 100644
--- a/src/MaaCore/Config/Miscellaneous/OcrPack.h
+++ b/src/MaaCore/Config/Miscellaneous/OcrPack.h
@@ -43,7 +43,6 @@ namespace asst
     protected:
         OcrPack();
 
-        std::unique_ptr<fastdeploy::RuntimeOption> m_ocr_option;
         std::unique_ptr<fastdeploy::vision::ocr::DBDetector> m_det;
         std::unique_ptr<fastdeploy::vision::ocr::Recognizer> m_rec;
         std::unique_ptr<fastdeploy::pipeline::PPOCRv3> m_ocr;
diff --git a/src/MaaCore/MaaCore.vcxproj b/src/MaaCore/MaaCore.vcxproj
index c5c617134c..7a6ae771ee 100644
--- a/src/MaaCore/MaaCore.vcxproj
+++ b/src/MaaCore/MaaCore.vcxproj
@@ -375,7 +375,7 @@
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>adb-lite.lib;fastdeploy.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>adb-lite.lib;MaaDerpLearning.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <UACExecutionLevel>RequireAdministrator</UACExecutionLevel>
       <Profile>true</Profile>
       <IgnoreSpecificDefaultLibraries>msvcrt.lib</IgnoreSpecificDefaultLibraries>
@@ -422,7 +422,7 @@
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>adb-lite.lib;fastdeploy.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>adb-lite.lib;MaaDerpLearning.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <UACExecutionLevel>RequireAdministrator</UACExecutionLevel>
       <Profile>true</Profile>
       <IgnoreSpecificDefaultLibraries>msvcrt.lib</IgnoreSpecificDefaultLibraries>
@@ -472,7 +472,7 @@
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>adb-lite.lib;fastdeploy.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>adb-lite.lib;MaaDerpLearning.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <UACExecutionLevel>RequireAdministrator</UACExecutionLevel>
       <Profile>true</Profile>
       <IgnoreSpecificDefaultLibraries>msvcrt.lib</IgnoreSpecificDefaultLibraries>
@@ -522,7 +522,7 @@
       <EnableCOMDATFolding>true</EnableCOMDATFolding>
       <OptimizeReferences>true</OptimizeReferences>
       <GenerateDebugInformation>true</GenerateDebugInformation>
-      <AdditionalDependencies>adb-lite.lib;fastdeploy.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>adb-lite.lib;MaaDerpLearning.lib;opencv_world4.lib;zlib.lib;ws2_32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <UACExecutionLevel>RequireAdministrator</UACExecutionLevel>
       <Profile>true</Profile>
       <IgnoreSpecificDefaultLibraries>msvcrt.lib</IgnoreSpecificDefaultLibraries>