Hoshimiya was appointed as Nishimura's new homeroom teacher. The first time they met, he was fascinated by her beauty and elongated legs, and the image of the teacher kept popping up in his mind. Hoshimiya also pays special attention to this shy, quiet student who is separated from his friends. Seeing that he often reads, she came to start a conversation by asking Nishimura to recommend some books to her. Once he stumbled upon the teacher entering the dressing room, Nishimura involuntarily peeked inside. Unfortunately for him, Hoshimiya found out everything. Too embarrassed, Nishimura took three days off from school. Because he was worried about the student, Hoshimiya personally went to his house to ask about him. While talking, Hoshimiya accidentally reveals her pretty little underwear in front of Nishimura, her legs constantly swaying as if beckoning to him. Unable to resist the charm of the teacher, Nishimura pushed her to fuck in his room despite Hoshimiya's efforts to stop her. After everything was over, he regained his composure and felt extremely guilty towards her. But Nishimura had no idea that Hoshimiya also had feelings for him. And the positions of both had now changed; it was the beautiful teacher who started to "attack" him! Since then, the teacher continuously seduced and flirted with Nishimura, even while they were at school. Knowing that things might go too far, Nishimura actively tried to stop her from continuing. However, when he witnessed the teacher constantly getting close to another guy, even though he knew she was just trying to make him jealous, Nishimura still felt uncomfortable deep down. He gradually began to acknowledge his feelings for her, and she did too. Eventually, they both returned to each other's side and continued to maintain this wrong relationship...