Im Yoona was a nice and caring girl. She wasn’t too rich, but not too poor. She was always the type of person to care about her love ones and did whatever they wanted her to do. Ever since she was young, she had to raise her little brother along with her aunt. Her mom left her with their dad, while her dad was sick and had to leave her with their aunt. Ever since she was young, she was raised by her dad, so she didn’t have a sense of fashion. She is now attending Seoul University, her first year is coming to an end and everything is going perfect. Although on the outside, her glasses cover her, she’s beautiful on the inside. She’s also pure and innocent. But what happens when her brother is acting like someone he really isn’t? What happens when there’s a party? What happens when she meets a certain guy there?

Ok Taecyeon is a bad boy. Not just a bad boy that goes partying and clubbing almost every night, but he’s also a player. He doesn’t date girls, well not for long. He’s the type that gets a girl for a day and leaves her the next. He attends Seoul University. He is the son of a model agency called, Ok Entertainment. His parents think that he’s a good boy, but everyone knows he isn’t. One day, when his parents are out of town for a business trip, he throws a party, a big party. What happens when he bumps into a girl? What will he do to her now?

Im Jaebum also known as JB is the younger brother of Im Yoona. Ever since he was young, he always loved singing and dancing. He is attending Seoul High School. He can also easily start hating people, and he never let’s go of the past. No matter what he’s doing, he always cares for his sister, but they’re total opposites. No one at school would believe that they are siblings. Why? Well she’s a nerd and he’s a cool kid. He was a cool kid until he joined the kingkas, which made him cooler and more popular. No one knew why he joined the kingkas suddenly, when he was the one always saying they were a bad influence. Not even Yoona knows why, all she knows is one day JB came home and the next day, he became someone that went partying and clubbing, someone Yoona couldn’t control in public, but only at home. What happens when one day he brings his sister to a party? What happens when a big incident happens? What happens when someone from his past comes back?

Park Jiyeon is the cousin of Ok Taecyeon. She is a nice, funny, caring, and beautiful girl, inside and out. To her, Taecyeon is a smart and intelligent guy. She doesn’t know the real him. Why? She was in Japan for almost two years, working hard to become an actress. After those two years she came back to live with Taecyeon and his family. One day while coming back from the airport she meets someone. Although it was only for a minute or two, she was sure it was him. What happens is she meets him again? What happens when he pushes her away? Most importantly…why?

Hwang Miyoung also known as Tiffany is best friends with Yoona. At school, Tiffany was considered a queenka, even though she didn’t hang out with them. Instead, she hangs out with Yoona, like a real friend. She knows everything about Yoona. They both tell each other everything. Literally everything. She was born and raised in America and when she moved to South Korea, she approached Yoona. Since then Yoona taught her Korean and they became close. Tiffany is the daughter or jewelry company called, Hwang and Co. Even though she lives in South Korea, her parents are always in America. What happens when one day JB asks her a favor? What happens when she goes to the party with Yoona? What happens when she bumps into someone she doesn’t want to talk to?

Choi Siwon is the best friend of Ok Taecyeon. Even though he’s friends with Taecyeon, he is the total opposite. Unlike Taecyeon, he is a gentleman and is nice. He’s a kingka because he’s handsome, but people think he’s rude and acts just like Taecyeon. The only reason why he’s Taecyeon’s best friend was because they’ve known each other since they were young, and Siwon knows everything about him. He also hopes that one day Taecyeon will realize his mistakes and won’t make bigger mistakes. He is the son of a famous home designing company name Choi Industries. What happens when one day when he tries to stop Siwon’s part? What if he bumps into someone that hates him?

Im Yoona

She seems like a nerd on the outside, but she is beautiful on the inside. She likes to hide herself behind her glasses, but when they’re off, she is a true beauty. Her eyes are what people fall for but she likes to hide it. She’s nice, caring, and smart, and she always lives life a positive way until certain things happen.

Im Jaebum/JB

The younger brother of Yoona. He’s not a troublemaker but he is a bad kid. He might seem cute, but something in the past changed him and made him became he is now. He’s not embarrassed of his sister, and he easily hates people that throws away someone and breaks promises, and also people who hurt others.

Hwang Miyoung/Tiffany

She is Yoona’s bestfriend, and Yoona is her best friend. She is from San Francisco and came to Seoul when she was about to graduate high school. Yoona helped her with Korean. She is considered a queenka because of her looks. She is nice and caring is always there to help Yoona and JB, who she considers as her family.

Ok Taecyeon

The top kingka of the group. He’s the leader and everyone knows it. Although he’s good with his grades, he’s actually a bad kid and everyone knows it. He always dates a different girl every day. Some people at Seoul University even say he takes advantages of girls, sleeps with them then leaves.

Park Jiyeon

The cheerful cousin of Ok Taecyeon. Some people judge her because of Taecyeon. Some say that she’s just acting nice and caring to cover up her real self. She studied in Japan for a year to become an actress, and came back to Seoul. She’s back for something or someone, but no one really knows.

Choi Siwon

He’s best friends with Ok Taecyeon since the age of five. He’s always trying to do the best for Taecyeon but doesn’t get listened to. He’s a gentlemen and always helps people, but  a lot of people mistaken him as being a flirt.