The modern girl Su Yao is a history buff and is good at studying the history of the Qing Dynasty. Due to an accident, her soul traveled to the Kangxi period of the Qing Dynasty and became the fourth prince Yinzhen's lucky brother. When Su Yao woke up and faced a strange ancient environment and everyone's greetings, she was shocked and managed to cope with it by relying on her understanding of Qing Dynasty etiquette.
Su Yao found herself not only as Yinzhen Fujin, but also in the palace where undercurrents were surging. She began to observe everyone in the house, including Yinzhen and his wife and concubines, trying to adapt to her identity and thinking about how to survive in this strange era.
