Geum Bo

After his uncle's unjust takeover of the family company, Kang Min Ho grows up to be a successful, if not cynical investor who only cares about money. But when he undergoes a sudden heart transplant surgery, Min Ho literally has a change of heart when he inherits a warm and compassionate heart. In the midst of seeing the world anew, including falling for the kind Kim Soon Jung, Min Ho must mitigate his newfound personality with the demands of his cutthroat career.

Lee Gwang Jae is the son of a rich family who is reckless and immature. His father dies and leaves behind large debts. Gwang Jae promises to pay off his debt for his father's honor, but it's not as easy as he thinks. Kim Young Ha supports Gwang Jae with her positive personality and love, giving encouragement to him whenever he needs it.