The crazy regent Gu Chengyu imprisoned the enemy's proton Shen Yan in a gilded cage, and used his bones and blood as a guide to refine "human poison" to survive for himself. Every night when Shen Yan was in pain and vomiting blood, he could always see the struggle flashing in Gu Chengyu's eyes - that was the young man who had stolen peach preserves for him on snowy nights and wiped his tears with his sleeves. Until the day when the city was destroyed, Gu Chengyu personally dug out the symbiotic Gu worms from his body in order to save Shen Yan's life. However, when he was about to die, he heard the other party sneer: "Do you think I really want to be your living medicine? I will not be killed until you kill Shen Yan." The whole family has grown up, and the tenderness of the past ten years has been poison." When the blood soaked through the bluestone, Shen Yan discovered the half-written marriage letter hidden in Gu Chengyu's personal jade pendant. The ink had already been blurred into pale scars by tears. It turned out that the enemy he had hated for ten years actually, on the night of every full moon, looked at the broken chess piece and the withered lantern he gave him, and pronounced the word "Yan'er" into a riddle of obsession.
Concept: The struggle of human nature on the ruins of power