Intro. Hiroki Mori was a kind, nerdy boy, passionate about comics and video games. He had a perfect life alongside his loving mother Kaede, his protective sister Kanoko, his childhood best friend Ayumu, and his sweet girlfriend Nao. But everything came crashing down with the arrival of Kokujin, the cruel bully who made Hiroki his favorite target, physically and psychologically assaulting him.
Kokujin wasn't content with just daily humiliation. He destroyed everything Hiroki loved. Kanoko, who tried to protect him, was seduced and corrupted, starting to participate in the abuses. Nao, behind his innocent façade, betrayed him with Kokujin and mocked his weakness. Kaede, influenced, abandoned her son and began to openly despise him. Ayumu, the lovesick childhood friend, threw everything away to give herself to the bully, completely ignoring Hiroki's suffering.