Lin Xia thought her boyfriend Shen Yanzhou was a considerate and ordinary second-generation rich man. On her second anniversary, her boyfriend used the excuse of a business trip, but asked her twin brother Shen Yan to come late to "take care of" her when she was sick. Lin Xia didn't know that this decisive billionaire tycoon was the senior she really fell in love with many years ago abroad. Seeing his younger brother give up his girlfriend for his new love, Shen Yanchi's possessiveness that he had suppressed for three years completely exploded. He wore his younger brother's skin and lured Lin Xia into a trap step by step. When his younger brother came back from vacation and tried to get his girlfriend back, Lin Xia was firmly locked in his arms. "Want to get her back?" Shen Yanchi said condescendingly, "It's too late, call me sister-in-law."