diff --git a/Source/Client/Session.h b/Source/Client/Session.h
index 04fed98..edac7d9 100644
--- a/Source/Client/Session.h
+++ b/Source/Client/Session.h
@@ -106,7 +106,10 @@ public:
   /* 0FAC */ const char* const* m_jobNamesEnd;
   /* 0FB0 */ unsigned char unknown_0FB0[0x34];
   /* 0FE4 */ std::list<std::uint32_t> m_pingSamples;
-  /* 0FEC */ unsigned char unknown_0FEC[0x6C];
+  /* 0FEC */ unsigned char unknown_0FEC[0x24];
+  /* 1010 */ std::uint32_t unknown_1010;
+  /* 1014 */ unsigned char unknown_1014[4];
+  /* 1018 */ char unknown_1018[0x40];
   /* 1058 */ int m_petActionTable[5][5][7];
   /* 1314 */ unsigned char unknown_1314[0x258];
   /* 156C */ XmlDocument m_petTalkTable;
diff --git a/Source/Contents/MonsterSpeech.cpp b/Source/Contents/MonsterSpeech.cpp
new file mode 100644
index 0000000..55924b9
--- /dev/null
+++ b/Source/Contents/MonsterSpeech.cpp
@@ -0,0 +1,121 @@
+#include "Client/Mode/ActiveGameMode.h"
+#include "Client/Mode/CGameMode.h"
+#include "Client/Session.h"
+
+#include <cstdint>
+#include <cstdio>
+#include <cstring>
+#include <string>
+
+// STRING: st_16737
+static const char monsterSpeechFather[] = "아빠";
+// STRING: st_16738
+static const char monsterSpeechOlderBrotherHonorific[] = "형님";
+// STRING: st_16739
+static const char monsterSpeechOlderBrother[] = "오빠";
+// STRING: st_16740
+static const char monsterSpeechYoungMaster[] = "도련님";
+// STRING: st_16741
+static const char monsterSpeechBrother[] = "형씨";
+// STRING: st_16742
+static const char monsterSpeechYoungMasterTopic[] = "도련님은";
+// STRING: st_16743
+static const char monsterSpeechYoungMasterObject[] = "도련님을";
+// STRING: st_16744
+static const char monsterSpeechYoungMasterWith[] = "도련님과";
+// STRING: st_16745
+static const char monsterSpeechMother[] = "엄마";
+// STRING: st_16746
+static const char monsterSpeechOlderSisterHonorific[] = "누님";
+// STRING: st_16747
+static const char monsterSpeechOlderSister[] = "언니";
+// STRING: st_16748
+static const char monsterSpeechYoungLady[] = "아가씨";
+// STRING: st_16749
+static const char monsterSpeechYoungLadyTopic[] = "아가씨는";
+// STRING: st_16750
+static const char monsterSpeechYoungLadyObject[] = "아가씨를";
+// STRING: st_16751
+static const char monsterSpeechYoungLadyWith[] = "아가씨와";
+
+// GLOBAL: gl_24523
+unsigned char monsterSpeechReplacementCount = 13;
+
+// GLOBAL: gl_24524
+const char* monsterSpeechReplacements[26] = {
+  monsterSpeechFather,
+  monsterSpeechOlderBrotherHonorific,
+  monsterSpeechOlderBrother,
+  monsterSpeechYoungMaster,
+  monsterSpeechBrother,
+  monsterSpeechYoungMasterTopic,
+  monsterSpeechYoungMasterObject,
+  monsterSpeechYoungMasterWith,
+  monsterSpeechFather,
+  monsterSpeechFather,
+  monsterSpeechFather,
+  monsterSpeechFather,
+  monsterSpeechFather,
+  monsterSpeechMother,
+  monsterSpeechOlderSisterHonorific,
+  monsterSpeechOlderSister,
+  monsterSpeechYoungLady,
+  monsterSpeechYoungLady,
+  monsterSpeechYoungLadyTopic,
+  monsterSpeechYoungLadyObject,
+  monsterSpeechYoungLadyWith,
+  monsterSpeechMother,
+  monsterSpeechMother,
+  monsterSpeechMother,
+  monsterSpeechMother,
+  monsterSpeechMother,
+};
+
+// OFFSET: 0x00E12870
+// FUNCTION: fn_23818
+void FormatMonsterSpeech(char* text, char* output, std::uint32_t aid, int feminine) {
+  char* source = *text == '\t' ? text + 1 : text;
+  std::sprintf(output, source);
+
+  int offset = 0;
+  int length = 0;
+  char* cursor = output;
+  while (feminine && monsterSpeechReplacementCount) {
+    char* found = nullptr;
+    for (int index = 0; index < monsterSpeechReplacementCount; ++index) {
+      found = std::strstr(cursor, monsterSpeechReplacements[index]);
+      if (found) {
+        const char* replacement = monsterSpeechReplacements[monsterSpeechReplacementCount + index];
+        length = static_cast<int>(std::strlen(replacement));
+        std::strcpy(found, replacement);
+        offset = static_cast<int>(found - output);
+        std::strcat(found, source + offset + length);
+        cursor = found + length;
+        break;
+      }
+      cursor = output + offset + length;
+    }
+    if (!found) {
+      break;
+    }
+  }
+
+  const std::string name = static_cast<CGameMode*>(g_world.ActiveGameMode())->nameCard.Name(aid);
+  const char* speaker;
+  if (!name.empty()) {
+    speaker = name.c_str();
+  } else if (aid == g_session.unknown_1010) {
+    speaker = g_session.unknown_1018;
+  } else {
+    *output = '\0';
+    return;
+  }
+
+  std::sprintf(source, "%s : ", speaker);
+  std::strcat(source, output);
+  std::strcpy(output, source);
+  const std::size_t end = std::strlen(output) - 1;
+  if (output[end] == '\t') {
+    output[end] = '\0';
+  }
+}
diff --git a/data/compile.json b/data/compile.json
index 2b30f6f..92d69b4 100644
--- a/data/compile.json
+++ b/data/compile.json
@@ -379,6 +379,7 @@
   "Source/Contents/Models/ModelSpatial.cpp": 3,
   "Source/Contents/Models/ModelTextureAnimation.cpp": 3,
   "Source/Contents/MonsterResources.cpp": 4,
+  "Source/Contents/MonsterSpeech.cpp": 4,
   "Source/Contents/MovementRoute.cpp": 4,
   "Source/Contents/MovementRouteInterpolation.cpp": 4,
   "Source/Contents/Movies/BinkMovie.cpp": 3,