Goto Ming, who had lost his memory, was picked up and brought home by a pink-haired wife by the river. He looked at his face in the mirror, and a strange feeling filled his body, but the three moles on his ears and the star-shaped birthmark on his shoulder made him feel extremely familiar.
On the surface, Shimokitazawa is calm, but secretly a substitute is causing trouble. Goto Ming, who has a substitute [World], begins to look for other substitutes to try to figure out what happened before he lost his memory.