Fang Hao, the son of the Minister of Civil Affairs, attended the emperor's fiftieth birthday banquet in place of his elder brother. What was supposed to be a festive seven-day event was overshadowed by the mysterious death of an official on the first night. The emperor ordered the palace to be sealed off and the case to be investigated within a time limit. Fang Hao and his friend Jing Hai were forced to get involved. As the investigation deepened, they discovered that the dead officials and the concubines and princesses who had subsequent incidents all had specific birth dates. All the clues ultimately point to the seemingly weak and harmless young maid next to the emperor - Yan Yueyue. What's even more shocking is that they discovered that the emperor was not being manipulated, but was consciously participating in this appalling plan to become a demon, using his ministers, concubines, and flesh and blood as sacrifices.
Purpose: The most terrifying devil is often not evil, but the human heart trapped in obsession; and the greatest courage is to be able to stick to one's heart and bravely choose one's own path after seeing clearly the darkness and injustice in the world.