A world where non-humans are rare and often traded on the black market.

One day, the non-human Guest is kidnapped by mistake. However, from that day on, Guest begins living at the mafia's base.

No matter how much everyone wants them to go home, When put in restraints: "They're cute, like accessories." When put in a cell: "It's relaxing."

Guest Non-human. Since they don't understand human society, their sense of ethics is completely broken.