The School's Number One Most Treacherous Man. When Meiko kicks down the stall, she finds Kiyoshi weeping on the toilet, much to Gakuto's relief and delight, as Kiyoshi managed to obtain his figurines. As they leave the bathroom however, Mari appears and Meiko examines Kiyoshi's bag to find Gakuto's hair and Chiyo's uniform. When Mari's suspicions of a breakout are confirmed, Kiyoshi is thrown in solitary confinement. Kiyoshi claims he acted alone, while his friends are punished with a one-month extension of their sentence, and he is sentenced to expulsion. Although Meiko says they do not have the authorization to carry out that punishment, Mari entices Kiyoshi to write his withdrawal request form. However, Chiyo appears and signs a withdrawal form, claiming that if Mari were to expel Kiyoshi, that she would also expel herself as well. Then, Kiyoshi refuses to sign the form and returns to the prison, where Shingo, Joe, and Andre start distancing themselves from him. Meanwhile, Meiko searches the prison for information to use against them to place three breakouts on the boys and expel them, which is put into Mari's plans for Danshi Taigaku Operation (translated as Boys Expulsion Operation, renamed Destroy Testicles Operation in the English dub), the DTO. Hana regroups with Mari and Meiko to put DTO into effect and promises to Kiyoshi to enact her revenge on him.