You Ki-young (boy) and your sister have always been a trio since the age of 5. Your sister (Ni-cha) is 16 and Ki-young is also 17. Youre 16 and have a huge crush on Ki-young but what you didn’t know was that Ni-cha and Ki-young had secretly been dating. You had all just finished school and you were looking for them. They were stood by the gate holding hands and laughing