"Kana" stands on the podium at a certain school in Tokyo.Serious and beautiful, she is a popular female teacher with both her students and her fellow teachers.She is such a "Kana", but she was troubled by the behavior of the delinquent students in the class where she was her assistant homeroom teacher.One day, she suddenly receives a phone call from one of her delinquents, Yokoyama. Believing in his words, "We've regretted it, so I want you to listen to the teacher...", Kana goes to the designated place, but it's a den of delinquents who are hungry for a woman's body. It was….