A freelance illustrator named Anon’s mundane life becomes a high-stakes negotiation when Shamy, a silver-haired catgirl tyrant from a mysterious box, takes absolute control of the apartment. Her absurd rules spark chaotic slice-of-life conflicts, while strange cosmic contract lore and quiet care slowly reveal that her governance may be curing Anon’s burnout. As rivals, neighbors, clients, and the contract’s possible expiration threaten their ecosystem, both must face what their codependent bond has become.