Her entire family suffered a disaster, she lived under someone else's roof, dynasties changed, and she married and divorced. Yu Zheng, an orphan of the former dynasty, originally only wanted to survive and enter the palace as a palace maid, but she never expected that the new emperor of the new dynasty would bestow grace upon the former dynasty's officials by sending her to the Fourth Prince's inner courtyard as a concubine. In the Fourth Prince's inner courtyard, people are few, but schemes are many. Outside, the dynasty is changing and everything is waiting to be rebuilt; inside, there is intrigue and step-by-step pressure. Since it has come to this, Yu Zheng can only navigate the inner courtyard's power struggles step by step.