Children of Nobody(2018)

Original title: 붉은 달 푸른 해

Cha Woo Kyung is a child counselor who works at a children’s center. Her life seems perfect since he is married to a great husband and is pregnant. However, her perfect life doesn't last long, when an accident changes her life. She then meets Kang Ji Hun, a detective who is hurt for hiding his troubling past but is strict toward criminals and believes they should be punished to the full extent.