Zoran (Lee Min Ho)

22 years old, he is Alena's ex boyfriend and they became very close friends and also her neighbor but there are so many times that they are fighting because "she is so annoying! so noisy!" -he said. He is tall, and good looking guy that is why many girls are falling in love with him or dreaming to be his girlfriend. He is an independent man who believes for what he believed, never changed his mind on what he is doing, he is also a moody guy and once he saw something looks so annoying, all day long he is so annoyed in everything he saw but he is a happy person, when he saw so some of his friends that looks so sad, he will do his best to make them happy, he is also a sweet and kind man. For him, true love doesn't appear when they are young, he believes that everything comes to his life while he is young is not true love, "it is just an illusion" he said. Is it possible for him to change his beliefs if he will meet someone who can prove that love truly exist even if they're young?

Alena (Kim So Eun)

19 years old,  one of Zoran's ex girlfriend but she became a very close friend of him and also his neighbor but there are times that they're fighting because "I dont know what's the matter about him, he is so mean to me when im doing something!"-she said ("because you're always doing it wrong!" -Zoran complaned), she is just a simple and sweet girl, a strong believer of love, karma, and fate. Since she was young she started to believe in true love and so desperate to find the "almost perfect man" for her "who will love me for all I am and will never change his mind, who will treat me as a real girl and will  always love me no matter what" she said. She also believed in destiny and everything happens for a reason and someday he will meet the one for her. She is a childish one and too clumsy, but she have a good heart and never stop hoping. When she was dumped(always) by so many guys which she liked, Zoran was the first one who can cheer her up with an instant noodles. Will Alena fall in love again with her friend Zoran? or  she will keep looking for another guy? will she find true love? or will she hide true love?

Janice (Kim Sa Rang)

21 years old, a friend of Alena who fell in love with Zoran which turns into an obsession. She is also jealous to Alena because she is always near with Zoran and they are so close with each other. She will do anything just to have the one she like specially Zoran, she will give up everything just for him. Janice is also one of the popular girls in their school because of her beauty, charm, and elegant look. There are so many boys who wants to date with her or be her boyfriend, Zoran also likes her and courted her. She is an easy go luck girl because she came from a wealthy family, also a good woman but if there is someone who will try to ruin her plans, she will start a new plans with her dark strategies to you. Will she stop her obsession with Zoran? or will she choose Alena her friend? or start to hate her?

Larvin (Park Ki-woong)

22 years old, ex boyfriend of Alena who dumped her just because he fell inlove with another woman. He is also one of the boys that Alena really loved. He is sweet but slightly a womanizer. After a year, he saw Alena and he felt like he missed her so much and he started to be more sweeter again to Alena and always being with her. Does he really love Alena? Will he fight for it? Or it is just another game?