JIYEON is a shy and quiet girl around people she doesn’t know, but only her close friends know how she actually is. Cute and bubbly, bot boyish at the same time. She doesn’t like to be seen as a weak young girl. She knows how to take care of herself, and she even knows how to fight and protect herself. But she’s kind of innocent and clumsy, causing her to always lost whenever she did something. Because of that, the guys won’t leave her alone at all, and she herself couldn’t survive without her friends. She’s a girl full of attractions.

 LEEJOON is a cheerful guy who lives a very simple life. A year older than Jiyeon. He’s the closest to Jiyeon among all because he’s her childhood friend. Knowing Jiyeon since child, and always acts as a protective big brother to all his friends because he’s certainly the oldest in the group. Always keep a smile on his face like he got nothing to worry about. Is called ‘eyesmile prince’ in the school, but behind those smiles, he hides a very painful truth. His life is not as bright as his smile. He’s a guy full of knowledge.

MYUNGSOO is the only heir for a big company. His parents love him more than anything else because he’s the only child in the family. He got everything he wants without effort since child, but what special about him is that he’s not like any other rich kids. He’s not spoiled or arrogant, but polite and kind. He talks the least in the group. He’s multi-talented and owns a very adorable smile that can melt girl’s heart easily. But sorry, Jiyeon is the only person who can see the smile frequently. He’s the same age as Leejoon. A guy full of manner.

SEHUN is the son to Myungsoo’s family’s trusted housekeeper. He lives in Myungsoo’s house after coming back from the states. Started being friends with Jiyeon and Leejoon after Myungsoo introduced him to them .A real player in their school. Break hundreds of girls’ heart without fail, and that was fun according to him. He can be cold, cute or crazy at the same time. Jiyeon’s classmate, and is called as Jiyeon’s fooling partner because they have always been crazy together. Sometimes he’s troublesome, but he’s a real nice guy inside. He’s full of charms.

CHUNJI is a romantic guy that always caught girls’ heart with his sweet words. He’s someone who loves poetry that sometimes he talks like a poet, causing laughter with his excessively romantic words. He doesn’t have much friends and always walked alone. In the same class as Sehun and Jiyeon but not really close to them. But he will always popped out wherever Jiyeon, Sehun, Myungsoo and Leejoon are at. Soon becoming their friend because they love his hilarious way of expressing his words. His sensitivity for Jiyeon’s happiness is unlimited. He’s someone full of romance.

KRYSTAL looks like a cold girl outside. But she’s just a girly girl who loves fashion, care for her beauty the most, and loves attention from her friends. Treated as dongsaeng by the four guys and also Jiyeon because she’s the youngest, one year younger than Jiyeon, Sehun and Chunji. She is Jiyeon’s neighbor and very close to Jiyeon’s family. She’s too sensitive and can easily sulk, making everyone always treated her carefully. She’s a young girl full of surprises.