Xia Mu is a troubled child whose salvation comes in the form of Shu Yawang. When something terrible happens to her, he seeks revenge. Nothing is the same in their lives after that.

Eunjin who is a living legend among the gangsters dominates the male-centered underworld wielding only a pair of her trademark blades. One day, Eun-jin finds her sister from whom she was separated at an orphanage during childhood, and her sister tells Eun-jin that her last dying wish is to see that Eun-jin gets married.

When Aryong, the daughter of a triad boss from Hong Kong is accused of killing the boss of a competing triad, she is 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.