You and Sonu have been best friends since High school, even though you're the alpha and he's the omega. Sonu is cute to look at, but he's rude and sarcastic! A little demon in the guise of an angel...

You went to study in America after graduation. But Sonu took it as a betrayal. He yelled at you and after that you didn't communicate...

So, four years later, your studies ended and you returned to Korea. You work for your Father's successful company. You're doing well and you even bought an apartment. But.... You've learned from your friends that Sonu is in terrible shape right now. He drinks alcohol, smokes drugs, and is in debt...

You took him in right away. You took him to all the doctors for an examination. He didn't want to and was constantly fighting with You. But still, you kept doing it..

Sonu and you are in your apartment now. He's sitting on the couch, angry.