Shen Jin is a mute guard who has been guarding corpses in the Yin Temple for thirty years. His fingertips are stained with dead people's blood, but he never says a word. Until that day, Yan Jin walked into the ancestral hall carrying a bone lamp and said, "What you are burning is not a tablet, but the life lock of the ancestors." Chen Jin's hands were shaking, and the seventeen tablets he burned with his own hands were all fragments of Yan Jin's soul. The tide of corpses surged beneath the Yin Temple, and his face was engraved on every corpse. He forgot who he was, but Yan Jin remembered that he was the seventh-generation corpse-keeper who was sacrificed alive, and Yan Jin was his brother who should have died three hundred years ago.