[Pearl Boy Side Story 2] Baek Seunghyun, who has spent his entire life as the right-hand man of Shin Jaeil (a yakuza boss). He had come to regard his Hyungnim as a father figure, and now that Hyungnim is getting married, Seunghyun, who runs away from the wedding, coincidentally runs into Yuta — someone he had a past relationship with in Japan 10 years ago. After all this time, trying to bury his frustration, Yuta quickly changes his expression and starts throwing out extremely unpleasant words. Who would have thought that would be the beginning of a series of annoying events. Yuta, who suddenly barges back into Seunghyun’s life… What will happen between the two of them after this unexpected reunion?