Mio's son has been bullied at school for a long time, and when she learns about it, she mercilessly pursues her homeroom teacher, Kubota. A package arrives from her parent's house to her homeroom teacher, and some old sex magazines are mixed in. When she casually reads, she accidentally discovers her who was published as No. 1 soap lady. To her surprise, her homeroom teacher, who had a grudge against her, threatened her with this incident as a joke.
