Qing Yuan, a cousin who lives in the Hou Mansion, reached a "acting" agreement with Jing Heng because of rumors in the capital that she was the child bride of the third prince Jing Heng. One is a rich businesswoman who hides a secret, and the other is a cold and distant prince in power. They were originally played as expedients, but they gradually became more affectionate through repeated trials and protections. From the shared dangers of Cha's life experience in Jiangnan, to the breakup of the situation side by side in the court turmoil, when the "joke" came into reality, the fate that started as a rumor eventually turned into a tacit affection for each other.