friend's mother

Tsuyako, the mother of Akira, a poorly performing son, is told by her homeroom teacher during a three-way meeting that if she continues like this, she will repeat the grade. Tsuyako manages to seduce her son's homeroom teacher with her specialty, fellatio, so that he can graduate. However, her son's friend Takashi sees the situation and takes a picture of her. A few days later, Takashi came to the house and showed Tsuyako a photo...