This Isn't Revenge, He Said

Sinopsis

Ryukichi Kojima was a promising shogi player whose dreams were shattered by relentless bullying from six high school classmates. Years later, these former bullies are now successful members of society, seemingly living their best lives. However, a mysterious figure in a hooded mask watches them from the shadows, holding a notebook containing the name of the boy they once tormented. This suspenseful story follows a man driven by a desire for revenge.