At five, Pei Youyi witnessed her father's murder by Cheng Dingguo, becoming a camp prisoner—revenge her sole purpose. Seventeen years later, released for a "first kill," she approached his son Cheng Jiayang as "Qiao Fei." A staged car accident, a camellia hairpin, and bold defiance of his rules—from police confrontations to a shocking announcement at his engagement party—she meticulously made the unattainable man fall for her.