What will happens to Mark after he meet with someone that he used to argue 10 years ago  and what's more worse that he have been asked to take care of that person ..

Mark and jinyoung are roommates.They are not exactly only roommates but also “something” . In which Mark Tuan is the type who’s crazy but Park Jinyoung is much crazier . Their appearance is like to entertain each other even they live in their own world .