Park Jiyeon is rich heiress to Park Group, one of the biggest comapnies in South Korea. And being born as daughter of rich family, she gets everything she wants. She has big and happy family. Handsome boyfriend. Social life. She's on covers of many magaizines. But, when she sees her first love and childhood friend Yoo Seungho, who unlike her is from middle class family, she starts to question her life.