A romance story between Do Min-Ik (Kim Young-Kwang) and Jung Gal-Hee (Jin Ki-Joo). Do Min-Ik works as a director of the mobile media 1 team at T&T. He is smart and excellent at his job. His secretary is Jung Gal-Hee. Do Min-Ik often does childish things like calling Jung Gal-Hee continually. Jung Gal-Hee carries out Do Min-Ik's orders without complaints. She looks soft, but she hides her tough side.