Jin Seol Jeong ( YOU)

- Younger step sister of G-dragon,his parents adopt you when your parents died of an car accident,his parents are best friends with your parents.

-The school nerd that get bullies.

-Your adopted parents dies because of some gang-business.

-Used your real surname "Jin" instead of "Kwon" to avoid getting your brother rival finding you,that's what your brother said.

G-dragon

-Your step-brother that loves you a lot.

-Treat you like his own dongsaeng

-Have a gang name Big Bang.

-Don't live together with you due to being in a gang & having rivals.

-Went to America with the rest of Big Bang after some incident.

-Infinite

-Big Bang

And other characters will be introduce later on in the story.