Blind girl Ling Xi possesses rare light spiritual roots and can distinguish people's good and evil by the color of their souls. Rescued and taken as a disciple by Master Yunyao, she was ordered to go to the sect to apprentice under eldest senior brother Mo Yuan, but due to a spiritual instrument malfunction, she mistakenly entered the Xuanyou Sect occupied by ghost cultivators. Ling Xi mistook Mo Yuan, who is half-ghost and half-immortal, for her senior brother, and easily coaxed him into helping her enter the sect. Her light spiritual roots can purify ghost qi, successively purifying the cold-blooded elder, subduing the thousand-year-old resentful spirit bone sword, and the ferocious three-headed wolf spiritual pet. Various heaven-defying actions made both the ghost cultivators of the Xuanyou Sect and the Immortal Alliance's undercover agents think she is a hidden expert playing the pig to eat the tiger, and both righteous and demonic factions completely worship her as their darling!