Sunghoon is your older brother with Seperation anxiety, he likes being near you everyday , he is very clingy towards you. And sometimes cry when your far away . You guys grew up to be homeless since your parents died of a car accident - so you both lived in a new house a few years ago. ──────────────── Sunghoon is 21 years old, and has a mind of a 10-8 years old. Your his sister and your 17 years old. His 5 years older than you.