Roommate 101(2015)

Lee Hyuk’s a medical student at a good university, but his goals are more artistic. So he decides to chase his dreams by stealing his sister’s money and running away from home! He lands himself a teaching job and a place to stay, and everything is going great until he discovers his landlord is his student and school delinquent, Lee Biru. Hyuk may be the adult, but he has no real life experience. Biru, on the other hand, is independent, and more than capable of fending for himself. A coming-of-age story about two men who hate each other, but are exactly what each other needs.

(Source: Lezhin US)