Choi Ji Won

Jiwon works as a producer for cable TV shows. She's been working for TvN for past two years now and she really loves it. She's a social butterfly, a person who's not afraid to speak her mind and she enjoys bossing people around. Despite her young age and questionable background she has already managed to earn her respect among her co-workers, seniors and juniors.

She has always been quite popular amongst guys and she has always used it to her advantage. She enjoys having fun and hooking up, she tends to go wild during the parties and she's an often guest in clubs. Dancing, even though she's not particularly good at it, is one of her passions. Drinking is the other.

She lives in a small apartment with her male (and also gay) roommate and Kim Ji In, who's like her sister. Even though Jiwon has always been the smarter one, Jiin has always been more reasonable than her best friend, saving her from all kinds of weird situations. And Jiwon would never risk her friendship with Jiin for anything or anybody.

She was always treating Jongin like her little brother, the one she'd never have. What she didn't anticipate was that this boy will grew up and become quite persistent in pursuing her. And that one night, she'll have just a little bit too much alcohol in her system and she'll do something she definitely shouldn't have.

Kim Jong In

He's a bussiness major student in Seoul University, president of student council and one of the most popular guys on campus. He's also well-known for enjoying women company, he has never been in a real relationship though. Having three older sisters has definitely helped him a lot when it comes to approaching women. He's very confident, smart and social. 

He rents an apartment with his friend - Oh Se Hun, who was his roommate in dorms, before they decided to move out.

He may look perfect for people from outside, he has one weakness though.

Choi Ji Won has been in his life forever, He's known her his whole life and he's had the biggest crush on her since the first time he saw her climb the tree. She was six then and he was four. Jiwon would always treat him as her younger brother, completely aual human-being while he was worshipping every breath she'd take. His sisters, Ji In in particular, were always trying to get him out of it, saying that Jiwon will never look at him this way and that he'll end up heart-broken. The stubborn creature he was, he has never given up. And he wasn't going to.

When The Night happened, he decided to pursue her further. He decided to make Jiwon his and only his.