Ling Yu Shuang Sheng tells the legendary adventure of the exceptionally gifted Ye Yu on the Xuanling Continent. When Ye Yu first enters the cultivation world, his slow progress puts him at risk of being expelled. Elder Xuan Feng uses a touchstone to discover that Ye Yu can separate his physical body from his primordial spirit, allowing him to stay and take part in an expedition to explore an ancient ruin.
Inside the ruin, Ye Yu is injured while saving his teammates. Working with Ling Xin, he makes it through a maze, drives off spies from the Blood Demon Cult, and wounds a guardian beast. As they near the central altar, the cult's spies reappear. Ye Yu unleashes his hidden power, and his feelings for Ling Xin grow stronger. Later, Ye Yu triggers a restriction, causing his primordial spirit to fall asleep. His physical body is ambushed by a protector of the Blood Demon Cult, and he struggles to help his primordial spirit regain its strength.
After emerging from seclusion, Ye Yu and Ling Xin stop the Blood Demon from seizing power, winning several clashes. When the Blood Demon takes Ling Xin hostage to threaten him, Ye Yu joins forces with Elder Xuan Feng and defeats the Blood Demon, safeguarding peace on the continent and becoming a hero.