Jung Yonghwa: 

Age: 22
Major: music
Family status: has one older brother, divorced parents, barely talks to dad
Wealth: upper middle class
Hobbies: music, dating one girl after the other, eating
Weakness: can't stand bugs

Seo Joohyun:

Nickname/ mostly called: seohyun 
Age: 20
Major: writing 
Family status: one older sister and friends that act like sisters
Hobbies: singing and writing songs (shhh don't tell it's a secret!), writing, studying, 
Known for: innocence, never dating and finding most guys repulsive, loving animals and insects (animal activist) 

Taeyeon:

Age: 24
Hobbies: watching Byun Baekhyun from afar and then pretending she doesn't like him when he approaches, protecting seohyun
Personality: crazy and caring 
Best friends: yuri and Sooyoung
Hates: guys near seohyun, idols because who can be all cutesy?? P.s: don't be fooled by her baby face, she's the oldest in the group. 

Yoona: 

Seohyuns best friend in the world
Status: popular for kind heart and pretty face
Age: 21
Major: computer science 
Siblings: yuri 

Yuri: 

Age: 23
Major: math sciences

Siblings: Yoona 

Hobbies: dancing

 Sooyoung: 

Age: 24
Occupation: model
Hobbies: eating, eating, and more eating 

Cnblue:

Major: music (where they met yonghwa minus jonghyun who has been friends with yonghwa for years)