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. 

His childhood friend-turned-best-friend-turned-lover is gone, and Key is convinced that he'll never be able to go on without his best friend at his side.