Oh Hyun-jin is the youngest executive at her company. She gives birth to a baby and stays at a postnatal care center. She is the oldest guest at the center for mothers and their newborn babies. While staying there, she meets other women, including Jo Eun-jeong, and they grow together as adults.

• Uhm Ji-won
• Park Ha-seon
• Jang Hye-jin
• Yoon Park
• Choi Ri
• Im Hwa-young
• Bae Woo-hee
• Moo Jin-sung