The dual-identity socialite Jiang Yao is both the nominal eldest miss of the Jiang family and the reclusive international jewelry designer Jony. After catching her fiancé Ji Shengxuan in an affair, she decisively cuts off the engagement. To investigate the old case of her mother's murder, she gets to know Ji Jinhai, the power-holder of Shengshi Jewelry. From bickering enemies probing each other to experiencing heavy crises such as rival interference and conspiracy kidnappings, the two gradually grow deeply affectionate amidst the tension. Jiang Yao unveils her true designer identity, joins hands with Ji Jinhai to gather evidence, and brings the villains to justice. Clearing the age-old wrongful case and crossing numerous misunderstandings and hardships, the two rush toward each other in a mutual attraction, welcoming a grand wedding.