On a trip abroad, Wen Xi is caught in an underground fight club and becomes the prize for the champion, Xu Zheqing, who is secretly a private security consultant tasked with rescuing her. Three years later, after her twin sister’s death, Wen Xi takes on her sister's identity at G.E. Company, where she reunites with Xu, now on opposite sides, and must navigate their complicated feelings to uncover the truth and find their way back to each other.