Park Jiyeon has been crushing on Yong Junhyung for about 3 months now. Junhyung has also been crushing on Jiyeon but he can't do anything since his parents are strick about girls. Later his parents set him up with a girl, Goo Hara. And he starts falling for her instead. Park Jiyeon has 2 best friends: IU and Suzy. IU and Wooyoung has been dating forever. Suzy gets a new boyfriend, someone who left for 3 years and came back. That guy is Yoseob. Yoseob and Jiyeon used to date 3 years ago. Yoseob left because of Jiyeon. But Suzy doesn't know their history. Lee Joon is a nerdy boy who is best friends with Jiyeon. Jiyeon liked him when they fist met but it seemed like Joon was not returning her signals and so her feelings decreases little by little. But whenever he comforts her or does things for her, she falls for him all over again. Joon also likes her but is too shy to do anything and he fears that if she knew he liked her, she wouldn't talk to him anymore.

This story is all about love, drama, realization, and true friendship.

Park Jiyeon is a average girl but is always confused on love. She likes Junhyung and Joon but doesn't know which one she truely loves. Also, Yoseob, her ex, has come back and it seems like he's trying to get her back while dating one of her best friend. Jiyeon always can rely on Joon and Joon always comforts her. Even though he suggests they stay close friends, he make her heart beat fast as if she's in love. Junhyung also makes her heart beat fast but now he is actually making her heart hurt. Yoseob is making her remember of the past they had and that makes her heat beat fast too, but in a dangerous way. After drama, drama, and more drama, she finally finds her true love. With IU and Wooyoung's help of course!

Lee Joon is a very smart (and good looking!) boy. Ever since he met Jiyeon, he fell in love with her. He was always to shy to say anything to he because he fears that she might ignore him after. But he keeps getting these signals from Jiyeon. He thinks maybe she's just playing with him since she is beautiful and she doesn't trust too many guys that wants to become friends (because they might just be playing with her). So everytime he gets those signals, he would act as if he doesn't understand or see it even though he wants to return those signals. He even told Jiyeon that they should just be close friends since he doesn't want her to think that he just wants her, even though he does. Whenever Jiyeon tells him about her life and guys, he would get sad but he blames himself for telling her that he only wants to be good friends.

There's something about Hyuna that Jiyeon remembers. As she tries to figure out who she is, she also turns out to be Joon's exgrilfriend who came back for Joon because of a promise they made a couple years ago. Hyuna may seem like a mean girl but she is acutally shy and nice. You just had to get to know her story.

Yong Junhyung is a very protective boy. He always stops bullying whenever he sees any. He's also protective about his friends and everybody he's close to. But when it comes to girls, he isn't that protective if his parents disagee with his girl. He usually doesn't protect them when his parents says bad stuff about them in their face. Which is kind of bad, I know. He always listen to his parents, even though they are strict about the girls he date. Every girl would want to date him but no one has the guts since they all know about his parents. Jiyeon though, still like him no matter what. Once Junhyung heard that she liked him and that she didn't care about his parent's strictness, he falls for her. Once he was certain he loved her, he told his parents about her and asked for permission. But his parents ignored what he said and told him instead that he had a blind date. And once he met the girl and started to know her, he fell for her instead, leaving Jiyeon heartbroken.

Yang Yoseob dated Jiyeon in the past, about 3 years ago. Once she left him for no reason, he left and went to live in the country side with his grandparents and no one ever heard of him again. But 3 years later, he comes back since his gandparents passed away. Once he comes back, he meets this girl, Suzy. They quickly started to like each other and soon dated. Once he found out that Jiyeon was Suzy's best friend, he tries to make Jiyeon fall in love with him again. He does it behind Suzy's back though, so she doesn't get hurt since he only wants to test Jiyeon. What is going to happen when Suzy finds out though?

Suzy is Jiyeon and IU's best friend. She came to their neighborhood 2 years ago. She doesn't know anything about Yoseob and Jiyeon's past. Once she saw Yoseob, she fell in love. Suzy is a very good friend. She understands thing. But once she finds out that Yoseob is trying to get Jiyeon, how would she act?

IU and Wooyoung has been dating for 3 years now, and it seemed like forever. Everyone thinks that they are experts on love since whenever someone needed help, they'd go to them and everything would turn out fine. But IU and Wooyoung are sort of having problems but will things work out this time?

Goo Hara is an innocent, nice girl. Once she was set up with Junhyung, she liked him instantly. When they first met, she knew that Junhyung liked Jiyeon since she asked around who he was. But she never tried to fight for him or anything. Their love just sort of happened.

Other Characters that don't have a very big role: Kikwang