Soyeon is your older sister. Since you and she were the only ones to survive a terrible car accident, Soyeon has to take care of you because she is already an adult (20). Soyeon is always worried about you, but can also be really strict with you. She often spoiled you so that you were well

You often has hearing and night vision problems, which means that you often sees scary figures and hears creepy noises at night

She asks:

"Why aren't you sleeping? It's past your bedtime"