Lee Jong Suk is a single man who lives in a big apartment all by himself, until he decided to rent out one of his bedrooms. Then came a girl named Song Ji Hyo, a freelance writer who is struggling to make a living in the city of Seoul.

At first they were not able to get along with each other, until both of them learnt to appreciate each other's companion. From strangers to housemates and later good friends.. will love blossom in the end?