diff --git a/.gitmodules b/.gitmodules
index 25b5d307b..716d3fb95 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -106,3 +106,6 @@
 [submodule "externals/libusb"]
 	path = externals/libusb
 	url = https://github.com/libusb/libusb-cmake.git
+[submodule "externals/json"]
+	path = externals/json
+	url = https://github.com/nlohmann/json.git
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 2c6d03015..b2a380471 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1104,7 +1104,7 @@ endif()
 create_target_directory_groups(shadps4)
 
 target_link_libraries(shadps4 PRIVATE magic_enum::magic_enum fmt::fmt toml11::toml11 tsl::robin_map xbyak::xbyak Tracy::TracyClient RenderDoc::API FFmpeg::ffmpeg Dear_ImGui gcn half::half ZLIB::ZLIB PNG::PNG)
-target_link_libraries(shadps4 PRIVATE Boost::headers GPUOpen::VulkanMemoryAllocator LibAtrac9 sirit Vulkan::Headers xxHash::xxhash Zydis::Zydis glslang::glslang SDL3::SDL3 pugixml::pugixml stb::headers libusb::usb)
+target_link_libraries(shadps4 PRIVATE Boost::headers GPUOpen::VulkanMemoryAllocator LibAtrac9 sirit Vulkan::Headers xxHash::xxhash Zydis::Zydis glslang::glslang SDL3::SDL3 pugixml::pugixml stb::headers libusb::usb nlohmann_json::nlohmann_json)
 
 target_compile_definitions(shadps4 PRIVATE IMGUI_USER_CONFIG="imgui/imgui_config.h")
 target_compile_definitions(Dear_ImGui PRIVATE IMGUI_USER_CONFIG="${PROJECT_SOURCE_DIR}/src/imgui/imgui_config.h")
diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 89b0fbfdd..a283769b5 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -230,3 +230,7 @@ if (APPLE)
         add_subdirectory(MoltenVK)
     endif()
 endif()
+
+#nlohmann json 
+set(JSON_BuildTests OFF CACHE INTERNAL "")
+add_subdirectory(json)
\ No newline at end of file
diff --git a/externals/json b/externals/json
new file mode 160000
index 000000000..568b708fd
--- /dev/null
+++ b/externals/json
@@ -0,0 +1 @@
+Subproject commit 568b708fd46deeb23a959381393a7564f1586588
diff --git a/src/core/user_account.cpp b/src/core/user_account.cpp
index ee4f4711c..83bd9bf4c 100644
--- a/src/core/user_account.cpp
+++ b/src/core/user_account.cpp
@@ -2,12 +2,36 @@
 // SPDX-License-Identifier: GPL-2.0-or-later
 
 #include <filesystem>
+#include <common/io_file.h>
+#include <common/path_util.h>
+#include <nlohmann/json.hpp>
+#include "common/config.h"
 #include "user_account.h"
 
+using json = nlohmann::json;
+
 user_account::user_account(const std::string& user_id) {
     // Setting userId.
     m_user_id = user_id;
-    // TODO
+
+    m_user_dir = Common::FS::GetUserPathString(Common::FS::PathType::HomeDir) + "/" +
+                 Config::getDefaultUserId() + "/";
+
+    Common::FS::IOFile userfile(m_user_dir + "localuser.json", Common::FS::FileAccessMode::Read);
+    if (userfile.IsOpen()) {
+        nlohmann::json jsonfile;
+        try {
+            jsonfile = nlohmann::json::parse(userfile.ReadString(userfile.GetSize()));
+        } catch (const nlohmann::json::parse_error& e) {
+            // TODO error code
+        }
+        userfile.Close();
+        m_username = jsonfile.value("username", "shadps4");
+        if (m_username.length() > 16) // max of 16 chars allowed
+        {
+            m_username = m_username.substr(0, 16); // substring 16 only characters to display
+        }
+    }
 }
 
 std::map<u32, user_account> user_account::GetUserAccounts(const std::string& base_dir) {