Hibiki Otsuki, a shy, bookish girl, has been infatuated with her teacher for months. While studying for her final exams at home, she can't stop masturbating and fantasizing about having sex. getting fucked as a reward for excellent scores. Upon learning that she has achieved a perfect score, Hibiki Otsuki takes this opportunity to declare that she not only wants to be his teacher's best student, but also wants to be the girl he tolerates the best... She made her dream come true, clicked her shirt and seduced him to fuck her in the classroom until she satisfied both her mouth and vagina!