There are a two groups of friends who knew each other as long as they can remember. Taeyeon, Jessica, Seohyun, Tiffany, Leeteuk, Donghae, Kyuhyun and Siwon gets in the stage of being responsible of their lovelife. 

The first couples are Kim Taeyeon and Park Jungsoo. Taeyeon is like the most perfect girl. She is pretty, smart, caring and very responsible but too secretive. Especially with her lovelife. She tells nobody about it. She never loved again after breaking up with her recent boyfriend, Park Jungsoo who is also known as Leeteuk. He's very matured, handsome with an angelic face. He is very interested in opposite , but still, he only loves the girl who changed him. Why did they broke up? It just started on a victory party. They had a little argument that time, ignoring each other with pride. Until one of Taeyeon's suitor got in the picture, kissing her harshly at the side of the venue. Luckily, Taeyeon quickly escaped the guy's grip. Things happened fast, Leeteuk saw the scene and grabbed a random girl, kissing it too, infront of her. They didn't let each other explain, and it leaded them to break up. What happens when fates meet them up? Will they get back together? Or move on with their life? 

Jessica Jung is a girl with a cold personality. She's cold, pretty, and smart. Guys found her cool and interesting but she won't mind them. She didn't find guys interesting until one guy melts up her cold heart, his name is Lee Donghae. He's a total heartbreaker, he is good looking, rich, but not-so-smart. He gets girls easily with his looks. BUT. Will Donghae can really melt Jessica's icy heart? How can he melt her heart? 

Seo Joo Hyun called as Seohyun, is the youngest yet the most pure and innocent girl in the group. She's not interested on guys, and lovelife. She focus herself with her studies. She is a silent-type of girl, she's the smartest of their group. She takes things easy, until she met Cho Kyuhyun. The good guy of the group, he is funny, and very friendly. But it happens that he has a girlfriend. What happens when the innocent girl fell inlove with a guy that has a girlfriend? For sure she wouldn't want to be the third party, and doesn't dare to ruin their relationship. Will Kyuhyun like her back? 

Hwang Miyoung, a.k.a Tiffany. A sossy type of girl. She loves fashion, make-ups, and every single girly stuffs. But, she distance herself towards guys because of something in the past. Choi Siwon is a gentleman type of guy. He is Tiffany's #1 suitor, and is willing to do everything for her. Will Tiffany give him a chance? 

Lee Soonkyu, also known as Sunny. She is the childish girl in the group. She often act cute, and she is very talkative. She admires Lee Sungmin who is very smart but is very cold. Will she succeed in getting his attention and change him to enjoy his social life? Will Sungmin like her back?

Park Jungsoo. 

Also known as: LeeTeuk, the school's president; kingka. 

Nickname: EeTeuk, Teukie, Teuk. 

Age: 24. 

Personalities: Matured, funny, outgoing, dorky, sweet, caring, smart. Physical characteristics: Neat, handsome, angelic face, average height. Interests: Songs, going out with his friends, white. 

Kim TaeYeon. 

Also known as: TaeYeon, the girl with a golden voice. 

Nickname: Tae-tae, Taengoo, Taeng, Yeonyeon. 

Age: 21. 

Personalities: Matured, understanding, responsible, intelligent, wise, active. 

Physical characteristics: Pretty, doll-eyes, small, milky-white skinned.

Interests: Singing, hanging out with her friends, ice cream. 

Lee DongHae. 

Also known as: Donghae, the school's heartthrob; soccer player. 

Nickname: Hae. 

Age: 22. 

Personalities: erted, doesn't care about his studies, playful, childish. 

Physical Characteristics: Handsome, charming,

Interests: Girls, girls, girlsssss. (LOL)

Jung SooYeon. 

Also known as: Jessica; the cold girl. 

Nickname: Sica, Jessi, Sicachu.

Age: 21.

Personalities: Cold but warm inside, boring, smart.

Physical characteristics: Poker-faced, pretty.

Interests: Silent place, studying. 

Lee Sungmin. 

Also known as: Sungmin, the silent creep. (According to Sunny.) 

Nickname: Sungminnie, minnie, (according to Sunny. XD) 

Age: 22. 

Personalities: Cold, rude, gets easily irritated. 

Physical characteristics: Makes girls fall in one cold stare, expressionless, handsome.

Interests: Has no interests at all. But he has a big secret interest. (You will find out soon on the chapters) 

Lee Soon Kyu

Also known as: Sunny; the girl who acts cute all the time.

Nickname: Sunny.

Age: 21.

Personalities: Loud, talkative, noisy, doesn't focus on her studies that much.

Physical Characteristics: Cute, small, adorable.

Interests: Friends, music, bunnies, bears, cute stuffs.

Choi Siwon.

Also known as: Siwon, the holy guy. 

Nickname: Wonnie. 

Age: 22. 

Personalities: Silent, gentleman, smart, sensitive. 

Physical Characteristics: Tall, handsome, white-skinned, elegant.

Interests: TIFFANY.

Hwang MiYoung. 

Also known as: Tiffany, the sossy girl. 

Nickname: Fany, tiff. 

Age: 21. 

Personalities: Loud, loving, sweet, smart. 

Physical Characteristics: Pretty, eye-smile, white-skinned, average height.

Interests: Fashion, clothes, pink stuffs, singing. 

Cho Kyuhyun. 

Also known as: Kyuhyun; evil kid. 

Nickname: Kyu. 

Age: 21. (Older than Taeyeon for months) 

Personalities: Smart, talkative, outgoing, loud. 

Physical Characteristics: Tall, handsome, white-skinned.

Interests: Games, starcraft, meeting new people.

Seo Joo Hyun.

Also known as: Seohyun, the innocent. 

Nickname: Hyunnie, seo. 

Age: 20.

Personalities: Silent, intelligent, kind, well-mannered. 

Physical Characteristics: Tall, pretty, big eyes, innocent-look.

Interests: Keroro, books, studying, music.