Episode 17 - S1.E17

Sun Jeong tells Jung Won about how Seo Yeon came to be with her, but Jung Won has a hard time believing her. However, they end up in a scuffle that Chae Woon sees. Jung Won faints and gets taken to the hospital. Later, Sun Jeong tries to tell Chae Woon why she didn't tell her that Jun Won is her biological mother, but Chae Woon reminds her that she doesn't want to know and that she is her mom.