Heechul-He has an attitude and loves to mess with teachers.

Siwon-The class rep.He doesn't like Heechul.

Hankyung-Heechul's best friend.He can handle Heechul's pranks.

Kibum-Like Heechul he loves to prank.Mostly on his classmates.

Kangin-Hes a childhood friend of Leeteuk.He secretly has a crush on him.

Sungmin-After meeting Leeteuk,he falls in love with him and beings to stalk him.

Kyuhyun-He loves to tease and bully he likes.He mostly prank Leeteuk.

Eunhyuk-Hes very close to Donghae.He doesn't like Leeteuk.

Donghae-He's a flirt.He flirts with Leeteuk when he first arrived.

Yesung-An Awakard student that doesn't talk much.Leeteuk tries to make him open up.

Ryeowook-He tries to help Leeteuk with making Yesung open up.

Shindong-Hes the class clown.He makes everyone laugh.

Zhou Mi-He clings onto Leeteuk.

Henry-Hes very shy and is the top student in his class.