Qiu Yuchen is a powerful figure in the empire. To repay the favor of Sheng Mingchu's grandfather, he goes undercover and becomes Sheng Mingchu's bodyguard. During the course of his protection, Qiu Yuchen falls in love with Sheng Mingchu. However, Sheng Mingchu, who was once saved by Xiao Yinan, decides to marry him. Just as they are about to register their marriage, Xiao Yinan abandons Sheng Mingchu after receiving a call from Yi Menglin. In her anger, Sheng Mingchu impulsively marries Qiu Yuchen. After the marriage, Sheng Mingchu regrets her decision, but Qiu Yuchen refuses to divorce, leading them to enter into a fake marriage agreement. Sheng Mingchu still has feelings for Xiao Yinan but is repeatedly hurt by him. With Qiu Yuchen's care and support, Sheng Mingchu eventually falls for him, and the two end up together.