This is the story of Lin Wanxing, a girl with mixed spiritual roots of the fifth lineage who was abandoned by her family. She met the mysterious and powerful Mo Yuan at Broken Soul Cliff, signed a contract and embarked on the path to immortality. She learned martial arts, practiced swordsmanship, and spiritual planting techniques in the Xingyuan Palace, and gradually awakened the chaotic spiritual roots. In order to find the cause of her mother's death and the fragments of the Xingyuan Order, she and Mo Yuan broke into the East China Sea Dragon Palace to confront Shen Qingci, the saint of the Qingyun Sect who coveted power, and exposed the conspiracy of Mo Chen (Mo Yuan's brother), the master of the Canning Star Pavilion. During the journey, the two went from a ridiculous misunderstanding to a tacit understanding, growing up in the crisis, uncovering grievances and promises spanning thousands of years, guarding the light of the world with courage and bonds, and composing a legend about growth, redemption and protection.