Number One in Martial Arts

The God of War Pei Qingnian rebuilt his body out of thin air after it was destroyed, but none of his previous mana was left, and he didn't even have the qualifications to practice. He was completely reduced to an ordinary mortal. He wanted revenge, so he traveled to secret realms that he had previously dismissed, taking risks and practicing everywhere. His original aloof and cold-blooded character was also subtly infected by Ruan Yining, the heir of the Sword Sect, and finally he returned to the top to save the world...