Tsukasa Tenma is an ordinary high school student and the leader of the musical troupe Wonderland X Showtime. Tsukasa has a strange form of love and care and is very driven, he has long had a strange crush on his friend and troupe member Rui Kamishiro. He invited him to his place under a harmless pretext and put him to sleep. Afterwards he locked him in the basement and chained his hands. When Rui resisted and tried to escape, Tsukasa broke his legs and threatened him.