I Will Become an Immortal by Devouring Myself

Fang Yun traveled through the Lianyun Sect, and his inferior spiritual root qualifications made it difficult for him to become a monk. Until he met a remnant soul hidden in a stone. Half of the magic formula can swallow all souls. Nine-Transformation Nascent Soul, Soul-Slaying Art, Hidden Mist Sword, Soul-Eating Sword... The weird method that ordinary monks avoid is the basis of his world-famous reputation! What about inferior spiritual roots? All the spirits in the world are at my disposal!