Episode 15 - S1.E15

Sun Jeong tells Chae Woon that Jung Won is her birth mother. Shocked and confused, Chae Woon yells at Sun Jeong for not telling her sooner and insists on seeing Jung Won right away. They go to Jung Won's house, but they can't bring themselves to go inside. The next day, Jung Won asks Chae Woon to accompany her to the columbarium where she put the urn of her daughter, which she thought she had lost. Chae Woon is shocked by the fact that Jung Won thinks she doesn't exist in this world.