Natsukawa Machiko came back to her home town to become a teacher. On the first day of the school, she met delinquent students on her way to the school. She warned them, but they began to molest her. She managed to leave there for the school, but she met them again. They were the student of the class she was responsible for. They began to molest her. At the moment, Uoi saved her. However, in fact, he was the leader of the delinquent group.