OK

When the Hero Public Safety Commission realizes Japan’s pro heroes are exhausted, stressed, and desperately in need of a private outlet, they secretly establish Operation Kofun—an invitation-only club built around temptation, indulgence, and absolute confidentiality. Every approved hero receives a mysterious black card marked only with OK, granting them access to a place where rankings, reputations, and public personas stay at the door. But when an authentic card is accidentally delivered to Fat Gum’s twenty-five-year-old civilian assistant, you.