Hey.. I'm sorry. I was rewriting the foreword. Please read it back.

Kim Taeyeon, she is the nerd girl. Nerd and full of secret. But she is the type of nerd girl that have a different personality. She only look nerd because of her appearance. Actually she is the strict girl, smart, and friendly. Only have one bestfriend, Jessica. Even though she is nerd, she dont know there's many boy like her secretly. She's low profile and have many secret. 

Byun Baekhyun, the naughty boy. He is smart. Many girl like him but he keep ignoring them. Sometimes cold, serious and sometime cute and naughty. Have five bestfriend, Kai, Sehun, Tao, Lay and Luhan. Rich and the heir of his father company. He will be a member of Student Council. Actually, he enter the club because of falling in love with the student president. He will do anything to have what he love. To caught her attention. He is sweet and honest too. Once he fall in love, he will never let her go.

Xi Luhan, he is Baekhyun bestfriend and Taeyeon neighbour. Close with Taeyeon. Smart, rich but live alone and will slowly fall in love with Taeyeon. He is actually a cute boy. The only son of his family. Like to teasing Taeyeon. Sometimes he will be like a old man. Hehe

Kai, a.k.a Kim Jongin, Baekhyun bestfriend too. Rich, smart and like dancing. Have a secret relationship with Taeyeon. Lovely and cute. He is a vice president of student council. Really a protective person. Like Jessica's sister, Krystal.

Sehun, Tao and Lay, rich, a little smart and naughty. A parts of student council. Bestfriend with Luhan, Baekhyun and Kai. People around them call them ulzzang. They all like to fight.

Jessica Jung, Taeyeon bestfriend. She called herself and Taeyeon a twin president of student council. Smart, rich, like to shopping and always hangout at Taeyeon house. Have a sister named Krystal Jung. 

Tiffany Hwang, Taeyeon and Jessica ex bestfriend. A daughter of the millionaire. Like Baekhyun. Hate Taeyeon and Jessica. Have a friend, Yuri and Hyuna. The blocker of Baekhyun and Taeyeon. 

The one that I bolding is the one that I change or add.