This drama revolves around an uptight, do-it-himself former-boxer boss and his supportive, versatile, ever-solo secretary. Jwa Yoon Yi (Baek Jin Hee) has lived her life with a passive attitude. She has a spirit of devotion and obedience. Meanwhile, Nam Chi Won (Choi Daniel) is the director of HB Company, but he refuses interests of other people and developing relationships. The woman and man meet as secretary and boss.