Shen Guyun defeated all his mentors with one sword, staining Xuantian Peak with blood. The former junior sister Mo Qinghe hid the truth fragments, the law enforcement elder Tie Xueyan had his mother's blood letter, and the headmaster Xuan Jizi begged him to return, just to activate the forbidden sword spirit. When the poison in Saint Liu Wushuang's body awakens, Taoist Dry Bones reveals the truth behind the scenes - what was taken away was never the swordsmanship, but the seal that suppressed the eternal evil spirits. Shen Guyun has become a sword slave. Can Mo Qinghe cut off the chain of reincarnation before he completely falls into the devil?
After Shen Guyun conquered the Xuantian Sword Sect, he discovered that his mentor Xuan Jizi had sacrificed the sect's disciples to refine the 'Taichu Sword Soul' to extend his life, but the real sword soul had long been sealed in the underground abyss. Mo Qinghe took the risk to deliver the fragment, revealing that the sword soul was originally a weapon to suppress evil, but was stolen by Xuan Jizi and then turned back on the sect. In order to atone for his sins, Tie Xue Yan took Shen Guyun into the forbidden area and handed over his mother's blood letter - it turns out that Shen Guyun is the only bloodline that can purify the sword soul in the 'swordless style'. The poison in Liu Wushuang's body awakened, and she recalled that she was the host body of the first-generation sword spirit, and Xuan Jizi used her to replace the real sword spirit. The Withered Bones Taoist appears and reveals that Xuanjizi has long co-existed with the evil things underground. Only Shen Guyun destroys the heart of the sword and turns the sword into a formation to seal the eternal disaster. Shen Guyun struggled between the anger of destroying his family and the weight of the people. Mo Qinghe decided to sacrifice his body to the sword, while Tie Xueyan and Liu Wushuang each had their own secrets and entered the end for their respective beliefs. Although Xuan Jizi knelt down and begged, there was already hidden murderous intent in his eyes - what he really feared was not Shen Guyun's return, but that after the sword soul awakened, the first thing it would devour was himself.
