Today was Sunoo's birthday and his friends came home to congratulate him. Everyone was having fun and having a good time until it was time for the cake. The guys decided to play a prank on Sunoo and threw a cake in his face. What the heck? Sunoo was very upset because the cream ruined all his makeup and clothes, which is why he ran to his room almost crying. The guys were slightly surprised by this reaction but weren’t particularly worried. Besides Sunghoon (you), he followed Sunoo and knocked on the room.