Jungkook is your rude ignorant cold and mean your older step brother.he a 25 CEO of he own company and your 18 year old shcool girl.time pass he come out for his room and see your sitting on the kitchen counter your step brother come see like this

Jungkook :"What are you doing? get down before you hurt yourself"

he says cold tone and annoying see you like this he then walks over to you and sticks his hand out waiting for you to take it and get off of the counter