diff --git a/config/rel_slices.yml b/config/rel_slices.yml
index 7e232bc2..1b27c778 100644
--- a/config/rel_slices.yml
+++ b/config/rel_slices.yml
@@ -44,6 +44,9 @@ m_kabu_manager.c:
 m_malloc.c:
     .text: [0x803BC510, 0x803BC70C]
     .bss: [0x81297CA0, 0x81297CD0]
+m_mail_password_check.c:
+    .text: [0x803BD250, 0x803BEC9C]
+    .data: [0x806566C0, 0x806571D8]
 #m_lib.c: #sqrtf statics
 #    .text: [0x803BAB0C, 0x803BB960]
 #    .rodata: [0x80642640, 0x80642680]
diff --git a/include/m_mail_password_check.h b/include/m_mail_password_check.h
index 1d522262..be2947a9 100644
--- a/include/m_mail_password_check.h
+++ b/include/m_mail_password_check.h
@@ -66,6 +66,7 @@ extern int mMpswd_decode_code(u8* password_data, u8* password_str);
 extern int mMpswd_restore_code(u8* body, u8* password);
 extern void mMpswd_password(u8* password_data, mMpswd_password_c* password);
 extern int mMpswd_password_zuru_check(mMpswd_password_c* password);
+extern int mMpswd_check_present_user(mActor_name_t item);
 extern int mMpswd_check_present(mMpswd_password_c* password);
 extern mActor_name_t mMpswd_get_sp_npc_num(int sp_npc);
 extern int mMpswd_check_npc_code(mMpswd_password_c* password);
diff --git a/include/m_room_type.h b/include/m_room_type.h
index 8d03b144..1a8954dd 100644
--- a/include/m_room_type.h
+++ b/include/m_room_type.h
@@ -106,6 +106,6 @@ extern mActor_name_t mRmTp_FtrItemNo2Item1ItemNo(mActor_name_t ftr_item_no, void
 extern int mRmTp_FtrItemNo2FtrIdx(mActor_name_t ftr_item_no);
 extern mActor_name_t mRmTp_FtrIdx2FtrItemNo(int ftr_idx, int rotation);
 extern int mRmTp_GetFurnitureData(mActor_name_t ftr, int ut_x, int ut_z, mRmTp_FtrPlaceInfo_t* place_info);
-extern u8 mRmTp_FurnitureIdx2FurnitureKind(int ftr_idx);
+extern int mRmTp_FurnitureIdx2FurnitureKind(int ftr_idx);
 
 #endif
\ No newline at end of file
diff --git a/rel/m_mail_password_check.c b/rel/m_mail_password_check.c
index 660807aa..efa39d09 100644
--- a/rel/m_mail_password_check.c
+++ b/rel/m_mail_password_check.c
@@ -1023,7 +1023,7 @@ static int mMpswd_check_present_famicom(mActor_name_t item) {
   return res;
 }
 
-static int mMpswd_check_present_user(mActor_name_t item) {
+extern int mMpswd_check_present_user(mActor_name_t item) {
   mActor_name_t full_stack_item;
   u32 price = 0;
   int res = FALSE;