This is the story of a woman becoming a mother. Soo Jin is a teacher at an elementary school. She plans to go abroad to study and teaching is just a temporary job. However, she notices that one of her student, Hye Na, is being abused by her mother and uncle at home. Soo Jin or the police cannot do anything because Hye Na doesn't know that she is being abused and says it's all good to people. As Soo Jin meets Ja Young and Seol Ak, the mother and uncle, she decides to save her from those horrible people. She makes an impulsive but sincere decision to become Hye Na's mother. Their story begins unexpectedly, but as Soo Jin and Hye Na start to believe and depend on each other, they become a real mother and daughter.