Jin Xia, a girl who thinks she will be single for the rest of her life, uses a 30-year loan to buy an ancient mansion in the small “Wangqi Town” by the sea. On the first night of moving into the ancient mansion, Jin Xia meets Nan Hua, an old-fashioned man who has lost his memory. Nan Hua possesses supernatural powers and claims to have lived in the ancient mansion for a thousand years. After several unsuccessful attempts to evict Nan Hua, Jin Xia is forced to hide Nan Hua in order to protect her old mansion, which she has been working hard to pay off, and hence commencing a cohabitation routine exclusively for the "Golden House of Hidden Love". During the cohabitation, Nan Hua recalls that he is actually an “ancient person” who has lived for a thousand years. The reason he is staying in the ancient mansion is actually to wait for someone, and various signs show that that person might very likely be his housemate, Jin Xia....

With the palace examination imminent, rumors spread through the Yingtian Academy about scholars being summoned by Yama, the King of the Underworld. Prompted by a peculiar letter from his respected mentor, the academy's dean, Bao Zheng, sets out with Zhan Zhao to uncover the truth behind these unsettling events. However, the academy is far from ordinary. The dean is missing, and scholars are dying one after another. An eerie atmosphere envelops the entire institution. Determined to find his mentor and halt Yama's killing spree, Bao Zheng resolves to investigate the matter thoroughly. Confronted by an imposing supervisor and unexpectedly encountering the dean's daughter, a childhood friend, Bao Zheng ventures alone into the chilling and sinister realm of the Ten Palaces of Yama. As these seemingly disparate elements gradually intertwine with the approach of the truth, Bao Zheng realizes that this is not merely a series of serial murders. Hidden within the court's power struggles lies a grander conspiracy, one he never anticipated......