Taeyeon - witty,  loves cats, computer geek, friendly, has no experience with love

Yoona - witty like Taeyeon, relates much with people around her,

                cheerful and thoughtful

Seohyun -  Motherly attitude, feminine, silent , mature but witty with her Bestfriends

Kyuhyun - Fell in love with Taeyeon, son of the President, snobby

Ryeowook -  Yoona's friend, witty but polite, hilarious, confident

Yonghwa - childhood frenemy of Seohyun, rich, secretly has a crush on Seohyun.

Donghae- yoona's long lost bestfriend

Bestfriends - Dong, Yong , Kyu and Ryeo. Popular kids in Highschool.