Hwang HaeJung doesn´t need anything. She has big house where she lives alone. She is one of the top students in her school. She is part of the school´s press club where she manage the advice corner. She has boyfriend. She has a really good best friend. So why she would make some stupid and risky decision?

Bang MinHee has a big brother who she hates- or not really hates, but she doesn´t like being with him. She has good and popular best friend. A lot of boys likes her. So why she ends up in love with someone like him?

Bang MinSoo, or Cap, is MinHee´s older brother. He has to attend same school as his sister and HaeJung, girl who he knows since kindergarden but never really spoke to her.

L.Joe is mysterious arrogant boy who appears from nowhere and makes things complicated. If there is one thing he is good at, it´s wordplay.

Chunji is bright boy who tries to hide his heart by acting cute. He talks too much and annoys people around him, but he is also best friend of L.Joe.

Sungyeol often gets into awkward situations but always finds good path out of it. He likes HaeJung and is open about it.

Hoya is quiet one who observes. His reflections are good, that´s why he is one of the best sportsmen on the school. But is he really so flegmatic, or is he just playing it?

Woohyun is in the charge of photos in school´s press club. MinHee finds him annoing while HaeJung like his presence.

L is sarcastic childhood friend of HaeJung. He has his tricks and his sources.

Niel´s personality is similiar to Chunji and Woohyun, or somewhere in between. He cares about Cap a lot. He sings whenever he can, even in the middle of a class.

Ricky doesn´t get along with people and have talent of pointing out things that are obvious so people actually admit them.

Changjo is quiet and for his age mature. He is good at martial arts and girls are around him constantly. But his eyes are fixed somewhere already.

Sungjong is in the charge of fashion commenting in the school´s press club. He is happy go around person...or not.

Sunggyu is calm. He is student council president. He has the authority and good grades. But he still miss something.

Dongwoo, on the first sight, is just guy who doesn´t think and do things spontaneously. But at the end, it shows that it was the part of his plan...plan to?

Those people didn´t have to change anything. Their lives was more like happy or ideal. Or they alredy got used to it. But fate brought them together and decided to play with them.