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.
Min Ho, a ruthless investment banker, is a cynical, sociopathic individual shaped by a traumatic past where his father's death led to a hostile takeover of his family business. After surviving a heart transplant, he begins to change, shedding his cold nature and embracing love. He falls for Kim Soon Jung but must compete for her affection. Will Min Ho fight for the woman he loves?