Gu Yuluo (played by Li Kaixin), who was fostered in the Gu family since childhood, married her young master Gu Chaoxi (played by Li Geyang).), who was about to become the new head of the Xuanji Pavilion, but Gu Chaoxi was assassinated. In order to stabilize the situation, Yuluo found someone who looked similar to Gu Chaoxi, and wanted to train him to replace Gu Chaoxi.Prince Yin Zhou (Li Geyang(played by Yu Luo) sneaked into the Gu family to avoid trouble and investigate. He was gentle and affectionate in front of him, but decisive in others, only to find that Yu Luo's husband was actually his missing eldest brother. The two people who each had their own secrets went from tit-for-tat to mutual affection, and finally connected.