IM YOONA

-She's known as the Princess of Hyukjung High.

-Her father is the CEO of the Im Trading Co. and remarried with a chinese-korean woman.

-She is smart, bright, beautiful and attractive especially to the boys. 

-Her hobby is painting.

 LEE GIKWANG 

-An average boy who likes to study a lot.

-Besides study, he likes to hang out with his friends.

-The top student of Hyukjung High.

-Jiyeon's cousin and Hara's ex.

-Likes to play basketball and baseball.

 LUHAN

-His mother married to Yoona's father and live together.

-He can speak both Korean and Chinese. 

-He loves his noona very much.

-He likes to play soccer and became the representative of Hyukjung High.

   PARK JIYEON

-Gikwang's cousin.

-Likes to hang out with Gikwang.

-Admire of Yoona's personality and beauty.

-The President of the Student Council of Hyukjung High.

 JUNG DAEHYUN

-Yoona's childhood friend.

-Likes Yoona.

-His family is close to Yoona's family.

-Likes to take pictures especially with Yoona.