Cha Do Hyun is a rich heir to a family company with one major problem. Due to suppressed childhood trauma, he suffers from dissociative identity disorder manifested in 7 unique personalities who are out of his control. In order to overcome this disorder in secret, he hires a first year medical resident to help him heal by killing off each personality one by one.

Ji Sung Joon has a crush on the most beautiful girl in town, Kim Hye Jin - the only problem is, he's unattractive and lacks self-esteem. As fate would have it, years later Sung Joon grows up to be not only successful, but extremely attractive. However, when he runs into his first love Hye Jin, she has become unattractive and poor. Can their love transcend the vanity they both associated with each other?

Hoon-Nam knows about love theoretically, but he rejects falling in love. Jung-Eum wants to fall in love, but, due to her difficult situation, she gives up on finding love. Hoon-Nam and Jung-Eum meet and develop a relationship romantically.

A romantic comedy about superstitious woman who tries to change her foretold fate by seducing a virgin and nerd guy. Bo Nui is a superstitious woman who relies too much in fortune-telling. One day she gets to know that if she doesn't sleep with a virgin man born in 1986 (year of tiger), she will die soon. She then meets an incredibly stingy guy Soo Ho. Bo Nui learns that he matches the conditions set forth by the fortune teller and sets out to seduce him. Unfortunately for her, Soo Ho is a nerd CEO of a game company who trusts only in logical and scientific things.