殺人百科 どうせ死ぬのなら……命を賭けた完全犯罪 (Associated Names)

Tsubasa Izumi, the protagonist, was subjected to relentless bullying in high school. No matter whom he turned to, no one offered help, leaving him in an environment where he began contemplating su*cide. Amid his thoughts of ending his life and his decision to stop attending school, he stumbled upon a book titled The Encyclopedia of…