Jang Ha-Ri (Jang Na-Ra) is a single woman and 39-years-old. She works as a deputy manager at parenting magazine company "The Baby." She has a beautiful appearance, but she hasn't dated in the past 10 years. This is because Jang Ha-Ri is a workaholic. She has given up on finding love or getting married, but she still wants to have a baby. Jang Ha-Ri soon becomes involved with 3 men.
Han Yi-Sang (Ko Jun) works as a freelancer photographer. He continuously looks for hobbies that will make him happy. He complains about pretty much everything, but he is enthusiastic with his work.
Yoon Jae-Young (Park Byung-Eun) works as a pediatrician. He is friends with Jang Ha-Ri. Suddenly, Yoon Jae-Young becomes a single father and he struggles to deal with his situation.
Choi Kang Eu Ddeum (Jung Gun-Joo) is a rookie employee, who works for Jang Ha-Ri. He has a positive personality and he adores her.
