The former nightmare king is now trapped in the mortal world. The chains are corroded and the heart becomes angry, and the black fog in the arena scares the neighbors. Lu Lin abandoned the reins and searched for ancient methods. He looked up and whispered and knocked at the door of his heart. The light and shade of the star chart reflect trust, and the forehead touching the neck proves equality. When the reins turned into stardust, when conquest turned into companions, he and the fallen night shadow walked on the field together, using trust as a bridge to lead the light to reappear, creating a legendary prelude to the symbiosis of myths.