Baek Seunghyun has spent his entire life serving as the right-hand man to Shin Jaeil, a powerful yakuza boss he has long seen as a father figure. When Jaeil prepares to get married, Seunghyun runs away from the wedding, only to unexpectedly cross paths with Yuta—someone he had a relationship with in Japan ten years ago. After all this time, Yuta hides his lingering frustration behind a sharp change in expression, lashing out with harsh and unpleasant words. What seems like a chance encounter quickly becomes the start of a series of troublesome events, as Yuta suddenly forces his way back into Seunghyun’s life. Following this unexpected reunion, what will unfold between the two of them?