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 whispering lewd words while holding her big tits in close contact with him, saying, ``I can't sleep for some reason...'' Furthermore, she can't hide her agitation and forcibly removes her teacher's pants, giving her a blowjob and sex that is unimaginable from her normally modest self.