Himari, the quietest student in the school, fiercely attacks the teacher who is nearing retirement age and has a secret crush on her! On the first night, she crawls under the teacher's futon as she goes to bed and seduces her by saying, ``I can't sleep for some reason...'' and whispers lewd words while touching her big tits! Furthermore, she can't hide her agitation and forcibly takes off her teacher's pants, giving her a blowjob and sex that is unimaginable from her normally modest girlfriend.