The ghostwriter "Jackal" Pei Xing (played by Shi Xiaolong) is known for being "invincible". He was originally cold-blooded and numb, exchanging his life for money. However, after witnessing people who uphold justice being wiped out by power, the chivalry in his heart was gradually awakened. He decided to retaliate, and on the road of revenge, he not only had to severely punish the evildoers, but also had to compete with various ghostwriters with superior martial arts.