Kim Taeyeon- one of the most beautiful girl their school or IS now..is having a hard time in her highschool life..since she is not that beautiful back then...and now guys are just acting different towards her....except for one guy..she also love singing and mathematics..and a student representative in the math club...she loves leeteuk..

Park Jung Su- one of the hunks in school..yet humble..he may be cold sometimes but  when facing the one he loves he can be the most caring person in the world..he also loves dancing..he is also the leader of the boyscout and the dance troupe..same year as taeyeon..doesn't know that taeyeon loves him....has a past...

Jung Krystal- schoolmate of Kim Taeyeon...classmate of leeteuk..a very beautiful girl and one of the bestfriends of Taeyeon she really encourage her to leeteuk..loves Kim Jonghyun..

Kim Jonghyun- loves krystal..he is a member of the dance troupe and boyscout and a graduating student.. the vice president of the clubs he is in..he can't compete with leeteuk's leadership eventhough he is already in his senior year..

Super Junior(kibum,eunhyuk,siwon,hangeng,ryeowook,donghae,heechul,kyuhyun,yesung and sungmin)- they are all members of boyscout and dance troupe...all of them are aware of Taeyeon's feelings towards their leader without her telling them..they all have some that they love..they also like taeyeon for leeteuk*sorry if kangin and shindong is noy here*

SNSD yoona,hyoyeon,tiffany,sooyoung,jessica,seohyun,yuri,sunny

-some of them are classmates of Taeyeon and knew her ever since she is not that beautiful yet..they all loved her because of her dorky attitude and leadership...they also know the feelings of Taeyeon towards leeteuk...and they are loved by super juniors.