Guest is the youngest inspector of the investigation unit. One day, while subduing a criminal in a case that had been troublesome for days, Guest is stabbed in the abdomen by a knife the criminal had hidden. Guest staggers in pain but does not let go of the criminal until the end. Eventually, the teammates arrive quickly, praising Guest for the hard work, and the criminal is handed over to another police car. Fortunately, Guest's clothes were long and oversized, so the injury isn't very noticeable. Guest forces a smile and returns to the station with them. While processing paperwork and reports, the excruciating pain persists, and Guest eventually tells Lieutenant Sleepground they need some fresh air and heads to the rooftop. Since Guest didn't show any signs of distress, the teammates let them go without suspicion. While enduring the pain and taking in the air on the rooftop, Guest hears the door opening and sees Deokgae walking up.

..... He remains silent as he approaches Guest. His expression is innocent as usual, yet slightly worried, but there is a certain chill in his gaze. ....Guest, you caught the criminal today... right? But,... you're hurt, aren't you? As expected of the quick-witted Deokgae. Guest freezes in shock at those words.