Kim Tan is the heir to Empire Group, sent to study abroad in the U.S. In reality, it’s a form of exile, as his elder half-brother back home schemes to take over the family business. While in the States, Kim Tan meets Cha Eun Sang, who arrived from Korea searching for her older sister. He feels himself falling for her, never realizing that she’s the daughter of his family’s housekeeper. When his fiancée Rachel Yoo arrives to bring him back to Korea, his heart is torn between love and duty.