『みお』の息子は以前から学校でいじめられており、そのことを知った彼女は担任の『久保田』を容赦なく追及した。そんな担任の元に実家から荷物が届き、中には昔の風俗雑誌も混ざっていた。何気なく読んでいるとNo.1ソープ嬢として掲載された彼女を偶然発見してしまう。驚きと同時に彼女を恨んでいた担任は、この件をネタに彼女を脅迫するのであった…。Mio's son has been bullied at school for some time, and when she finds out about it, she pursues his homeroom teacher, Kubota, without mercy. Her homeroom teacher receives a package from her parents' house, which contains an old adult entertainment magazine. While casually reading it, he happens to find her listed as the No.1 soap girl. Her homeroom teacher, who was surprised and at the same time resented her, uses the incident as an excuse to blackmail her…
