There are many masters in the martial arts villain Wushang's sect, among which the two killers Mu Yu and Yu Lincheng are the most trusted by the sect leader.
The two killers were childhood sweethearts and had been together for many years. They were not close friends but they had already developed a deep understanding.
During a mission, Mu Yu accidentally discovered the mystery of his life experience that had been deliberately hidden for more than ten years. This secret must not be known to people in the world, but his partner Yu Lincheng? Mu Yu's heart skipped a beat, let's kill him, at worst, let the sect master find another partner. So Mu Yu began a long journey to assassinate Yulin City.
While chasing Yu Lincheng, Mu Yu also noticed more and more secrets about Yu Lincheng...
Purpose: Punish evil and promote good