10 years later
"Soyeon" Mrs Choi called her daughter
"Why eomma?" Soyeon asked
"I have to tell you something" Mrs. Choi said
"What is it?" Soyeon asked
"We-we are not your real family" Mrs. Choi said
"What do you mean eomma?" Soyeon asked as tears falls
"Kim Dayeol, she's your real eomma, she gave you to me when she gaves birth to you and your twin" Mrs. Choi said
"Twin? I have a twin?" Soyeon asked
"Y-yes" Mrs. Choi said
"Do y-you know his or her name?" Soyeon asked
"S-Sunoo, K-Kim Sunoo" Mrs. Choi asked
"I'm sorry for keeping this to you, always remember that I love you and your brothers" that was Mrs. Choi's last message before she died