Jewelry designer Shen Xingruo discovers her fiancé favoring another woman at their wedding and decisively calls off the engagement. Gu Jingyun, the head of the Gu Group, publicly extends an invitation to her, and the two agree to a marriage of convenience. Returning to the workplace, Shen Xingruo puts her professional talents to use. With Gu Jingyun by her side, supporting and protecting her, she follows clues to investigate past suspicious cases, uses legal means to untangle business misconduct, and uncovers the truth about their fathers' generation. What begins as a written agreement gradually develops into sincere, mutual love. Together, they dispel layers of mystery, remain true to their passions and original convictions, and find a fulfilling happiness of their own.