Kang Ji Sook

Ji Sook is the younger cousin of the famous mankae from B2ST, Son Dongwoon. She has a very friendly, enthusiastic, and outgoing personality, and is almost always seen fooling around, smiling, making bad jokes, and teasing friends. Although, when she is bullied she takes it to heart and becomes very insecrue. Her life is turned upside-down when she begins to live with the members of B2st.

Yong Junhyung

Yong Junhyung is the rapper for B2ST. He is usually seen as the cool charismatic rapper when he is on stage, but his personality does change when he's off stage. Junhyung likes to be unique and is proud of showing it in public.  Currently he has been forced to date KARA's Goo Hara to attract more attention to both groups, but on a honest note he could care less about her.

Son Dongwoon

Son Dongwoon is the mankae of the famous boy group, BEAST.  Despite his appearence's he is very clumsy and immature, seeing how his role modle (aside from his father) is Wolverine. While his cousin is staying with him and his friends in the B2ST dorm he is very protective over her.

Goo Hara

Goo Hara is usually seen as a bright, naturally outgoing, and overall a prefect girl. Although behind closed doors Hara is a self centered person that only wants to make herself look good. Your either with her or against her and if you are against her, she find a way to make you look like a horriable person. She is braty and always wants to be the center of attention.

Lee Kikwang

Jang Hyunseung

Yoon Doojoon

Yang Yoseob