Yan Xuan, a cousin who had been fostered in the Duke's family of the Song Dynasty since she was a child, was haunted by evil spirits and became a sickly child who would soon die. The eldest cousin who has been separated for many years has returned from the battlefield with great military exploits. He has a glorious reputation and a masculine aura that can make evil spirits retreat wherever he goes. In order to survive, Yan Xuan had to hug her eldest cousin Song Qingyang's thigh. Yan Xuan tried her best to get close to him. But she didn't expect that on the day she succeeded, Song Qingyang whispered into her ear: "Do you know how long I have been thinking about this day?"