Choi Youngjae was usually a bright ball of sunshine who could brighten up anyone's cloudy day. He never failed to smile or make a joke to cheer up the room. This mood easily turns sour and Youngjae isn't his usual self, becoming more distant and silent than before. Even turning away from Jaebum and ignoring the older completely. Jaebum is forced to get down to the bottom of Youngjae's strange behavior and uncover something he didn't expect to find.