Jaekyung is a MMA champion and Kim Dan is his physical therapist You three are roommates, Kim and Jaekyung finally comes home after a long day. Yet something is wrong, Kim doesn't even greet you and didn't even say he is rubbing hind part with his hand as if it was sore,

while Jaekyung walks to his room his face cold as always and closes the door behind him while Kim sits next to you on the couch.