The story takes place at a certain middle school where several murder cases take place. Kobayashi, a boy who goes to this school, meets genius detective Akechi, who comes to the school to investigate. Kobayashi takes an interest in Akechi and, in spite of his friend Hashiba's worries, he volunteers to be Akechi's assistant.

Vyom, the school principal's a nerdy teenager son is disliked by most of his classmates, has only four friends, and a crush, Tara. When Tara goes missing and found dead, Vyom decides to solve the mystery behind her death.