In this contemporary reimagining of a classic love story, Hyun Eunseo was taken in by a wealthy conglomerate family at the tender age of seven. From then on, she was treated like royalty, with the exception of Jinha, the stoic and affectionate youngest son of her adopted parents. As Eunseo's grandad falls gravely ill, his grandsons vie for her affections, which also unlock access to the family's corporate empire. Eunseo knows Jinha would make the perfect Prince Charming, but she's torn between her steadfast attachment to her childhood friend Seungyeon, who is also Jinha's cousin. Will Eunseo's nefarious family members succeed in sabotaging both her love life and future? Or, will Eunseo distinguish between duty and desire?