Mortal: I, Zhang Tie, started by joining forces with Han Li to kill a strategist.

He transmigrated into the body of Zhang Tie, a character with the same name from the novel "A Mortal's Journey to Immortality," the pitiful wretch turned into a human puppet by Mo Juren. In the original story, he was merely a mindless combat puppet, ultimately possessed by Xuan Gu in the Chaotic Star Sea and killed by Han Li's own hands. Fortunately, in this life, he possessed the Book of Karma. Consuming karma points, he deduced cultivation techniques, broke through bottlenecks, and changed his destiny. His first act was to drag Han Li along to fight back against Mo Juren, and then, together with Han Li, he joined the Six Sects of the Demonic Path. From then on, the cultivation world welcomed two great villains. One surnamed Zhang, the other Han. Each more ruthless and cunning than the other. Both the righteous and demonic paths spoke of them with only one evaluation: "When two evils walk together, not a blade of grass grows."