Machi Gurumi no Wana: Hakudaku ni Mamireta Shitai

The story tells the story of a young teacher who is faced with an unpleasant situation in the form of blackmail by one of her students. This student, a young guy, starts with small requests, but gradually his demands become more insistent and unacceptable.

The main character's sister tries to help her in this difficult situation, but in the end she finds herself embroiled in this story.