Lee Ji-hyeok suffers from sexual dysfunction caused by childhood trauma, but he shows a physiological response only to Dr. Han Seo-yeon. To treat his condition—and to save her grandmother—the two enter into a “master-servant treatment contract.” As they undergo treatment and live together, their feelings for each other begin to grow. At the same time, Ji-hyeok discovers that his father’s fatal car accident was connected to his stepfather, Kang Man-cheol. Joining forces against a family conspiracy, the two ultimately heal both body and soul, finding true love and justice.
