Jonghyun is a pretty mellow guy. A music major, he lives in a small apartment with his boyfriend, the one and only Kim Kibum.  Key--as he likes to be called--is a self-proclaimed class one diva. His flamboyant personality, as the exact opposite of Jonghyun's calmer, more reserved personality, makes Jonghyun's life a lot more interesting. 

Key just can't figure out what is up with these twelve boys at his high school who never seem to talk to anyone but each other, so one day he brings it up with his friends at lunch.