A story of three female friends who are 39-years-old.
Cha Mi-Jo (Son Ye-Jin) was born and raised by wealthy parents. She is now 39-years-old and works as a dermatologist at her own clinic in Gangnam, Seoul. Jeong Chan-Young (Jeon Mi-Do) is one of Cha Mi-Jo's close female friends. She works as an acting coach.