diff --git a/Source/Contents/UserData/CharacterLinkedUserDataSaveAsyncWork.cpp b/Source/Contents/UserData/CharacterLinkedUserDataSaveAsyncWork.cpp
index c584560e..3ed23808 100644
--- a/Source/Contents/UserData/CharacterLinkedUserDataSaveAsyncWork.cpp
+++ b/Source/Contents/UserData/CharacterLinkedUserDataSaveAsyncWork.cpp
@@ -2,6 +2,8 @@
 #include "Contents/UserData/CharacterLinkedUserDataSaveAsyncWork.h"
 #include "Network/Http/CURLPostHander.h"
 #include "Network/TextEncoding.h"
+#include "Utility/Cipher/XorBytes.h"
+#include "Utility/Text/FormatString.h"
 
 #include <cstdio>
 #include <windows.h>
@@ -13,16 +15,53 @@ namespace {
                                 "aracterLinkedUserDataSaveAsyncWork.cpp";
 
   // INLINED
-  AsyncDiagnostic Diagnostic(bool success, const char* text, std::uint32_t line) {
+  __forceinline AsyncDiagnostic Diagnostic(bool success, const char* text, std::uint32_t line) {
     std::string message = text;
     return AsyncDiagnostic(&success, &message, sourceFile, &line);
   }
+
+  template <std::size_t Length, std::uint64_t Key>
+  class EncryptedName {
+  public:
+    explicit EncryptedName(const std::uint8_t (&source)[Length]) : m_encrypted(true) {
+      for (std::uint64_t index = 0; index < Length; ++index) {
+        this->m_text[index] = source[index];
+      }
+    }
+
+    ~EncryptedName() {
+      for (std::uint64_t index = 0; index < Length; ++index) {
+        this->m_text[index] = 0;
+      }
+    }
+
+    const char* Text() {
+      if (this->m_encrypted) {
+        utility::XorBytes(this->m_text, Length, Key);
+        this->m_encrypted = false;
+      }
+
+      return reinterpret_cast<const char*>(this->m_text);
+    }
+
+  private:
+    /* 0000 */ std::uint8_t m_text[Length];
+    bool m_encrypted;
+  };
+
+  // INLINED
+  template <std::uint64_t Key, std::size_t Length>
+  const char* DecryptName(const std::uint8_t (&source)[Length]) {
+    thread_local EncryptedName<Length, Key> name(source);
+    return name.Text();
+  }
 }
 
 // OFFSET: 0x005E7C10
 // FUNCTION: fn_03944
 CCharacterLinkedUserDataSaveAsyncWork::CCharacterLinkedUserDataSaveAsyncWork()
-    : NAsyncWork("CharacterLinkedUserData_Save"), m_accountId(0), m_characterId(0), m_diagnostic(Diagnostic(false, "unknwon", 28)) {
+    : NAsyncWork("CharacterLinkedUserData_Save"), m_accountId(0), m_characterId(0),
+      m_diagnostic(Diagnostic(false, DecryptName<0xC52FB5FBB94FF917ULL>({0x62, 0x97, 0x24, 0xD7, 0x8C, 0xDA, 0x41, 0xC5}), 28)) {
 }
 
 // INLINED
@@ -46,7 +85,8 @@ void CCharacterLinkedUserDataSaveAsyncWork::Bind(
   this->m_url = url;
   this->m_token = token;
   this->m_data = data;
-  AsyncDiagnostic diagnostic = Diagnostic(false, "unknwon", 54);
+  const std::uint8_t unknown[] = {0xB0, 0xA3, 0xEC, 0x9B, 0xD6, 0xCC, 0x89, 0x93};
+  AsyncDiagnostic diagnostic = Diagnostic(false, DecryptName<0x93E7A3A1F587CDC5ULL>(unknown), 54);
   this->m_diagnostic.MoveFrom(diagnostic);
 }
 
@@ -54,20 +94,32 @@ void CCharacterLinkedUserDataSaveAsyncWork::Bind(
 // FUNCTION: fn_03949
 bool CCharacterLinkedUserDataSaveAsyncWork::Execute() {
   char accountId[64] = {};
+  StringFormat(accountId, sizeof(accountId), _TRUNCATE, "%lu", this->m_accountId);
   char characterId[64] = {};
-  _snprintf_s(accountId, sizeof(accountId), _TRUNCATE, "%d", static_cast<std::int32_t>(this->m_accountId));
-  _snprintf_s(characterId, sizeof(characterId), _TRUNCATE, "%d", static_cast<std::int32_t>(this->m_characterId));
+  StringFormat(characterId, sizeof(characterId), _TRUNCATE, "%lu", this->m_characterId);
   std::string name = ToUtf8(this->m_accountName);
   std::string data = ToUtf8(this->m_data);
   CCURLPostHander handler(this->m_url);
-  handler.AddField("AID", accountId, 4);
-  handler.AddField("GID", characterId, 4);
-  handler.AddField("AuthToken", this->m_token, 4);
-  handler.AddField("WorldName", name, 4);
-  handler.AddField("data", data, 4);
-  const bool success = handler.Perform() == 0;
-  AsyncDiagnostic diagnostic = Diagnostic(success, success ? "good" : "fail", success ? 102 : 98);
-  this->m_diagnostic.MoveFrom(diagnostic);
+  const std::uint8_t aid[] = {0xE0, 0x74, 0xDB, 0xD7};
+  handler.AddField(DecryptName<0x59278F63D79F3DA1ULL>(aid), accountId, 4);
+  const std::uint8_t gid[] = {0xF0, 0x4E, 0x13, 0xCD};
+  handler.AddField(DecryptName<0x812BE72BCD5707B7ULL>(gid), characterId, 4);
+  const std::uint8_t authToken[] = {0x14, 0x88, 0xC1, 0xB3, 0x93, 0xDE, 0x1E, 0x56, 0x3B, 0xFD};
+  handler.AddField(DecryptName<0x3375B1C7DBB5FD55ULL>(authToken), this->m_token, 4);
+  const std::uint8_t worldName[] = {0x48, 0x5E, 0xBF, 0x8B, 0x89, 0x3B, 0x0C, 0x70, 0x7A, 0x31};
+  handler.AddField(DecryptName<0x1D6D75EDE7CD311FULL>(worldName), name, 4);
+  const std::uint8_t dataName[] = {0x09, 0x02, 0x41, 0x4C, 0xA5};
+  handler.AddField(DecryptName<0xD98F03A52D35636DULL>(dataName), data, 4);
+
+  if (handler.Perform() != 0) {
+    const std::uint8_t fail[] = {0xB7, 0x78, 0xF4, 0xE3, 0x6B};
+    AsyncDiagnostic diagnostic = Diagnostic(false, DecryptName<0x0F0F8B6B8F9D19D1ULL>(fail), 98);
+    this->m_diagnostic.MoveFrom(diagnostic);
+  } else {
+    const std::uint8_t good[] = {0x6E, 0xC6, 0x28, 0x3B, 0xD9};
+    AsyncDiagnostic diagnostic = Diagnostic(true, DecryptName<0xD3755DD95F47A909ULL>(good), 102);
+    this->m_diagnostic.MoveFrom(diagnostic);
+  }
 
   return false;
 }