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.

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.