Jin-goo is tall and handsome. Sam-bong is short and ugly. The two go to the same university and live in a rooftop house in the country. One day, Jin-goo meets Se-ra who simply wants to be in his arms. She begs him to let her stay with him for a week as she has no where to go and the three of them live together.
When Aryong, the daughter of a triad boss from Hong Kong is accused of killing the boss of a competing triad, she goes into hiding in Korea. Upon arriving, she is guided by a nimble but loyal Gi-chul and his motley crew, who are assigned to protect her until her return.