diff --git a/Source/Client/Session.h b/Source/Client/Session.h
index 6f2e668..7838803 100644
--- a/Source/Client/Session.h
+++ b/Source/Client/Session.h
@@ -19,6 +19,7 @@
 class CActRes;
 class LuaScript;
 struct ActionFrame;
+struct WindowDialogs;
 
 struct SessionRecord6144 {
   /* 0000 */ std::uint16_t unknown_0000 = 0;
@@ -34,6 +35,16 @@ struct RobeAlpha {
   /* 0008 */ int period;
 };
 
+struct ProhibitionLogEntry {
+  /* 0000 */ std::uint32_t aid;
+  /* 0004 */ std::uint32_t accountId;
+  /* 0008 */ std::uint32_t minutes;
+  /* 000C */ std::uint32_t date;
+  /* 0010 */ std::uint32_t time;
+  /* 0014 */ char name[32];
+  /* 0034 */ char ownerName[32];
+};
+
 struct SessionShop {
   /* 0000 */ unsigned char unknown_0000;
   /* 0004 */ std::vector<std::map<int, std::pair<int, int>>> unknown_0004;
@@ -59,7 +70,9 @@ public:
   /* 06F9 */ unsigned char unknown_06F9[0x23];
   /* 071C */ std::vector<int> m_homunSkillLevels;
   /* 0728 */ std::vector<int> m_mercSkillLevels;
-  /* 0734 */ unsigned char unknown_0734[0x44];
+  /* 0734 */ unsigned char unknown_0734[0x20];
+  /* 0754 */ std::vector<ProhibitionLogEntry> m_prohibitionLog;
+  /* 0760 */ unsigned char unknown_0760[0x18];
   /* 0778 */ std::vector<std::pair<int, int>> unknown_0778;
   /* 0784 */ std::map<std::int64_t, std::int64_t> unknown_0784;
   /* 078C */ std::map<std::int64_t, std::int64_t> unknown_078C;
@@ -239,6 +252,8 @@ public:
   int FindUnknown0778(int key) const;
   CSkillInfo AdditionalSkillAt(int index) const;
   CSkillInfo HomunSkillAt(int index) const;
+  void DeleteProhibitionLog(std::uint32_t aid, std::uint32_t minutes, WindowDialogs& dialogs);
+  const char* DecodePlayerName() const;
   void NotifyHomunSkillWindows();
   void NotifyMercSkillWindows();
   int GetPetActionNumber(int hungerLevel, int friendlyLevel, int action);
@@ -283,6 +298,8 @@ extern CSession g_session;
 
 #if defined(_WIN32) && !defined(_WIN64)
 static_assert(sizeof(SessionRecord6144) == 0x38);
+static_assert(sizeof(ProhibitionLogEntry) == 0x54);
+static_assert(offsetof(CSession, m_prohibitionLog) == 0x754);
 static_assert(offsetof(SessionRecord6144, unknown_002C) == 0x2C);
 static_assert(offsetof(SessionRecord6144, unknown_0030) == 0x30);
 static_assert(offsetof(CSession, m_additionalSkills) == 0x4);
diff --git a/Source/Contents/Skills/ClientSkills.cpp b/Source/Contents/Skills/ClientSkills.cpp
index 9636d87..9459ab1 100644
--- a/Source/Contents/Skills/ClientSkills.cpp
+++ b/Source/Contents/Skills/ClientSkills.cpp
@@ -2,14 +2,19 @@
 #include "Client/Session.h"
 #include "Contents/ClientState.h"
 #include "Contents/Jobs/JobId.h"
+#include "Contents/Jobs/JobInheritance.h"
 #include "Script/LuaScript.h"
 #include "UI/Window/UIWindow.h"
 #include "UI/Window/UIWindowMgr.h"
+#include "UI/Window/WindowDialogs.h"
 #include "UI/Window/WindowManagerWindows.h"
 
 #include <algorithm>
 #include <cstring>
 
+// GLOBAL: gl_24650
+char g_decodedPlayerName[64];
+
 namespace {
   // INLINED
   CSkillInfo Find(const std::list<CSkillInfo>& values, std::uint32_t id) {
@@ -429,6 +434,29 @@ void CSession::EraseUnknownKey(std::int64_t key) {
   }
 }
 
+// OFFSET: 0x00E085A0
+// FUNCTION: fn_23763
+void CSession::DeleteProhibitionLog(std::uint32_t aid, std::uint32_t minutes, WindowDialogs& dialogs) {
+  const char* message;
+  auto found = this->m_prohibitionLog.end();
+  for (auto entry = this->m_prohibitionLog.begin(); entry != this->m_prohibitionLog.end(); ++entry) {
+    if (entry->aid == aid) {
+      found = entry;
+    }
+  }
+
+  if (found == this->m_prohibitionLog.end()) {
+    message = "채팅 로그 삭제 실패 : 채팅 금지를 준 기록이 없습니다.";
+  } else if (found->minutes > minutes) {
+    message = "채팅 로그 삭제 안함 : 마이너스 된 시간이 기존의 채팅 금지 시간보다 짧습니다.";
+  } else {
+    this->m_prohibitionLog.erase(found);
+    message = "채팅 로그 삭제 성공";
+  }
+
+  dialogs.Confirm(message, 0, true, false, 0, "Message", 280, 120, 0);
+}
+
 // OFFSET: 0x00E08690
 // FUNCTION: fn_23764
 std::int64_t CSession::FindUnknown0784(std::int64_t key) const {
@@ -474,6 +502,17 @@ int CSession::GetBeginEffectId(int skillId) const {
   return effectId;
 }
 
+// OFFSET: 0x00E08C70
+// FUNCTION: fn_23771
+const char* CSession::DecodePlayerName() const {
+  std::memcpy(g_decodedPlayerName, this->m_playerNameKey, sizeof(g_decodedPlayerName));
+  for (unsigned int index = 0; index < sizeof(g_decodedPlayerName); ++index) {
+    g_decodedPlayerName[index] ^= g_playerNameKey[index];
+  }
+
+  return g_decodedPlayerName;
+}
+
 // OFFSET: 0x00E08EE0
 // FUNCTION: fn_23773
 ItemInfo CSession::GetItem2B50(int index) const {