Hye-yeon is a fashion designer who adopts and raises the child of a man she once loved. For her daughter Ga-hee, Hye-yeon is the only parent she knows. When Kim finds out that Ga-hee was adopted he tries to convince Hye-yeon to expedite her studies abroad. Ga-hee becomes suspicious. One day, Hye-yeon is shocked to find out that her daughter has become close with her lover Min-joon and seeks Kim's counsel and finds out that Ga-hee's biological mother has been released from jail. Hye-yeon decides to end it with Min-joon and Ga-hee meets her mother Sung-ae who served 19 years for killing her husband. Sung-ae tells her that Hye-yeon is her only mother. Ga-hee begins to regret her actions.