Gong Chan is the wealthy, unattached heir to a large company. Having lost both his parents, he is devoted to what remains of his family, particularly his ailing grandfather. After…

18-year-old Kang Gyung-Joon’s spirit suddenly becomes transplanted in the body of 30-year-old Seo Yoon Jae. Seo-Yon-Jae is a successful doctor and engaged to high school teacher Gil Da-Ran. Gil Da-Ran…