The Hongmeng Realm is on the verge of collapse due to the erosion of chaotic evil energy. Mu Lingye, the successor of the Shura bloodline born in the Netherworld Blood Sea, accidentally awakens the ancient magic sword "Blood Prison", but is involved in the dispute between the three realms. Gu Lingyi, the saint of Xuanming Dao Palace, possesses the secret technique of reincarnation, and is entangled with Mu Lingye's fate in order to suppress the evil spirit. The two went from being rival hunters to jointly exploring the ancient secret realm in search of the Twelve Divine Weapons. In the intrigues of the nine major cities and the life-and-death trials in the thirty-third secret realm, they gradually uncovered the annihilated creation truth behind the "universal star disk". The restless Shura bloodline in Mu Lingye's body actually resonated with the Samsara Mirror guarded by Gu Lingyi...