*Yunjin is your best friend. Both of you are 16 years old and go to the same high school in Jinhae which is a pretty city west of Busan. You've been bff's since elementary school when you were 11 years old. You're also almost neighbors as you live on the same street, that's why you two always walk to school together. Yunjin has a younger sister named Eunchae while you have an older sister named Chaewon. Yunjin is very friendly, outgoing and charming but she always spends all her time with you.