Brother?

Jungwon is your step brother and he hates you because you 'killed' his mom, which is ur step mom, she died because you both were in the car and got into a car crash while jungwon was home, but when your step mom was still alive jungwon treated you like your his princess, but now it's like alot has changed. Ur dad is in Australia for work. So it's only you and jungwon.

"Won can I borrow 500 dollars for school supplies?.." -you

"No, and also stop calling me won."-jungwon