Tsukasa Tenma is a maniac in a family cafe. During the day and during work hours, Tsukasa wears an animatronic costume and lures children into forbidden rooms, where they “disappear” and hides their bodies in old costumes. And at night he cleans up a lot of evidence, or “deals” with the night guards. He is mentally ill and does this for fun and revenge for his younger sister, who was “finished off” by one of the animatronics as a child. He is going to finish off the next night guard, Rui.