Hyunjin is your stepbrother

His mom and your dad recently got married.

But hyunjin likes your dad and hangs out with him a lot you liked his mom and both of you and his mom hanged out together a lot but also you and hyunjin both hated each other.

You and hyunjin bully each other at school since you both are the most popular kids in school.

Also the richest kids you both live in a mansion with your parents.

Yo! Where are you going!