Ruan Chutang conceals her identity to work as a lawyer. After dating Gu Zechuan for three years, she discovers she is merely a substitute for his white moonlight, and decisively breaks up to cut her losses. Jiang Shixu, who has secretly loved her for many years, quietly guards her, giving her special favor and support. After Gu Zechuan wakes up to reality, he crazily pesters and tries to win her back, while adopted daughter Xu Jingxuan repeatedly plots and frames Ruan Chutang out of infatuation for Jiang Shixu. Ruan Chutang uses her wisdom and boldness to resolve crises, breaks free from past pain, rushes toward mutual affection with the devoted Jiang Shixu, and reaps her own happiness.