Jeon Jungkook

Has a prince charming look that every girls fall in love. A handsome, rich, cold, famous, and childish prince.
H

e doesn't have much friend, since he was so cold. For him, his known (best)friends are only his friends. Nothing more, nothing less.

Choi Yuna

Known as Yuju.
She is a talented pretty girl.
A super bright and cheerful girl.
She wasn't born rich, but she was born rich in love of her family & friends.
As long as for her family, even though it was so hard, she will do everything just to help them.
A responsible daughter and sister.

BTS

Jungkook's bestfriends.
They are the reliable source of Jungkook.
They are the naughty boys, but still a lovable one.

Seokjin (Jin), Namjoon (Rapmon), Yoongi (Suga), & Hoseok (JHope) are Jungkook, Taehyung (V), & Jimin's sunbae.
-The 4 sunbaes have still connection with them even though they're already graduated at the university and busy in their own work.

GFRIEND

Choi Yuna's / Yuju's close friends.

Kim Sojung better known as Sowon is one of Yuju's bestfriend and also their sunbae.
-She did took care of her while being afar from her parents.
Hwang Eunbi better known as SinB is also Yuju's bestfriend.
-A cute little sister, but also a protector of her bestfriends Yuju & Sowon.

Jung Eunbi or better known as Eunha will become Yuju's friend along with Jung Yerin & Kim Yewon or known as Umji.
-This three girls are known as the princesses of their unversity, since they are so pretty and they are so rich.

OTHERS
I will include some random characters.
We'll see who are they.