Shen Yuan, a history graduate student, traveled through time and became the daughter of a guilty minister. She signed a temporary contract with the regent Pei Changyuan at the beginning: she helped him seize power, and he guaranteed her revenge. In the dilapidated dormitory, she secretly exchanged information through the secret passage of the maid Xiao Tang, and used Xie Yun's forged handwriting to gradually dismantle her enemies. When she finally wiped out her family with blood, put on her wedding dress and ascended to the throne, she discovered from the relics of Queen Mother Zhao that the power she borrowed came from the future, and the price was to destroy the balance of the world with her own hands. Pei Changyuan drew his sword and pointed it at her: "You slaughtered everyone, but have you ever thought that this country is my debt?"