The female body urinal ``Public Toilet'' is installed as a sexual outlet for the students.Reika, the head of the student council, has been chosen to use the public toilet. She was restrained in the toilet and forced to defecate. On top of that, Reika even loses her virginity in front of everyone...Meanwhile, Sakurai Ryo is excited by the sight of her in the ``public toilet''. Chika Takamine looks at Ryo forlornly. In front of Ryo, who has invited her to her home, Chika puts on the same mizutou outfit she wears in her public toilet. Chika says she will be Ryo's public toilet, and she stuffs her cheeks with Ryo's penis...! ?