Ji-yeon and Do-jin are exhausted from years of IVF treatment. They don't remember what life was like before. She continues to experience the pain of separation from a child she has never met. Do-jin is worried about her health and wants her to quit, but she can't. "Why can't I be a mother?" She won't give up.
The lives of six girls belong to different worlds although connected to each other through a doll called Molly, whose existence dates back to 1976, when she appeared among the rubble of the great fire of the San Carlos orphanage, in northern Spain.