Mio wishes she could be friends forever with her favorite classmate's boyfriend - such a modest wish is easily destroyed. Even though romance between students is prohibited, a teacher had witnessed the date. If the school finds out, she will be expelled...Mio becomes anxious, and the teacher tells her that if she does as he says, she will stay silent, and pushes her down. Even though she doesn't like it... Even though it's disgusting... Before she knew it, Mio became absorbed in the pleasure that was given to her, and began to ask for cock herself.