The main joke of this series is the contrast between super-serious yakuza Ken Kanashiro's usual poker face and the way he passionately emotes when either watching or talking about his kpop idol bias. This is a fun series, full of in-jokes and a developing cast of quirky side characters. One of my favorites is Megumi, the mafia boss's daughter who initially introduced Ken to kpop and laments not being able to understand her favs, but claims she is "too busy stanning to study Korean."