Jung Ho, Yu Ri, Se Yeon, and Jin Ki have been friends for 17 years since Seoyeon High. Jung Ho is a landlord who used to be called the Monster Genius of the prosecution. Despite his clumsiness, he is a cool guy with a mysterious charm. Yu Ri is an eccentric lawyer who won the past Miss Korea contest with her outstanding looks. Her hot-tempered characteristic that cannot stand injustice leads her to quit her firm and start a law cafe of her own. When she goes to see her landlord for the contract, she finds out that he is her old friend Jung Ho. From that point, a crazy relationship that develops from friendship to love begins.