A Romance in the Cold Palace

Dynasties were changing, and the country was in turmoil. She, a little attendant, gained the favor of the prince, but was abandoned after a romantic night. She was a witch, a prostitute, and was called names one after another. She got married, became a concubine, and was deposed. Her life was completely changed. But I don't know who the person who changed me was that night. What should she do to bring everything back to the beginning, even in the cold palace, those peaceful years?