"The Princess' Promotion". According to the query starting point Chinese website, "Prince Concubine's Promotion" is a romance novel published by Wanjuan Publishing Company in 2012. The author of the book is Xian Cheng (pseudonym of Bei Xin). It tells the story of Siming Xingjun, who is trying to make up for his work mistakes. The story is about the soul of modern man Zhang Peng being secretly brought out of the underworld and possessed by Zhang Pengpeng, the Crown Princess of Southern Xia who "fell into the water and died".