Rule Bureau 404 is a suspense drama. Milo Redding, Tiger Hayes, Carter Shaw, and Zoe Hale are pulled into Apartment 404, a rule-bound game. They must survive deadly rules and uncover a mole. Zoe Hale is an undercover NPC, eliminating players. Milo exposes Zoe, revealing the mole. Milo clears the instance. The game continues, linked to a past. An invitation to Late-Night Convenience Store arrives, starting a new game.