Yakuza no Oshigoto

Ken Kanashiro holds a high-ranking position in the Washio Clan, a powerful yakuza group. He adheres strictly to the principles of the Japanese underworld, where loyalty and the bond between members and their aniki are paramount. He has never been interested in hobbies. When the boss's daughter, Megumi, takes him to a K-pop concert, he encounters Jun for the first time. Impressed, Ken becomes deeply involved in the fandom, approaching it with the same intensity and dedication he applies to his yakuza life.