Ken Kanashiro, the tough second-in-command of the Washio Clan, defies yakuza stereotypes with his interest in the K-pop boy group My Night With (MNW) after watching a documentary. Inspired by the dedication of MNW's members, Ken finds himself enamored with the group, a sentiment shared by his subordinates and rivals. Swapping violence for fan activities like choosing biases and collecting photo cards, the once fierce yakuza world is now immersed in the world of K-pop, proving that even the most hardened individuals can be won over by the heartfelt music and camaraderie of these boys.