Ao Jin is actually the world-destroying black dragon that was sealed, and the Immortal Sect wants to seize his scale-reverse weapon. In order to protect him, Su Dao pretended to surrender and got involved in the "Dragon Slaying Plan". After Goldfinger was exposed, the elders of the Xianmen forced her to use her abilities to control Ao Jin to commit suicide. At the critical moment, Su Chen activated his ability in reverse - pouring his own spiritual power into the reverse scale, Ao Jin stopped degenerating and regained the body of an adult dragon! It turns out that Ni Lin is the contract medium, and she is the real "dragon feeder". During the final battle, Ao Jin turned into a giant dragon and wrapped her around her to rush towards the Heavenly Tribulation: "If you bite the reverse scales to pieces, you can swallow the destiny."
