Song Yuan is like a ghost in the abyss. He can never escape the claws of the devil and is eternally doomed in the abyss. When his life was about to be shattered, a man named Bai Xi entered his life. Gradually, he made him feel that the world outside the deep valley was full of color. Bai Xi is Song Yuan's salvation and the person who pulls Song Yuan out of the bottom of the valley. However, in that era, how happy could two men be? In five years, will you still be my light?