Yong Junhyung has never been in love. He doesn't even believe in Love. Thinks of it as just a stupid game the mind plays with you when you're lonely. His best friend since childhood, Goo Hara, thinks otherwise, she's the type to fall easily for guys and get hearbroken. 

One night, Hara is heartbroken once again, and Junhyung gets fed up. The two argue til a tiny spaceship arrives before them. Inside were, 2 beautiful people. They're aliens from another galaxy, though they're very human like. One is a gorgeous princess running away from her evil parents and the other is an utterly handsome Boy who is the princess's assistant. 

They are in desprate need of help, and Junhyung agrees on doing it. Junhyung and Hara sacrifice a lot just to keep the princess and her assistant's identities a secret.