Name: Kim Yoon Ji 

She's 14 years old and she loves to dance. She's smart, athletic, generous, and a little bit stubborn. She can be pure grily but that doesn't mean she doesn't want to act like a boy. She likes cute things and her parents are in another part of the asian country, so her best friend took her in.

Name: Choi Hee Young

She's 15 years old and she's really obessed with K-pop. She likes cute things and she's smart, athletic, and acts tomboy at times since most boys like girly-girls. Her family took Yoon Ji in and they are sisters and can tell each other everything and anything.

Name: Choi Jonghyun {Changjo}

He's 15 years old and he's the maknae of the newly debuted group Teen Top. He tries to keep a kind heart and is the main dancer.

Name: Lee Byunghun {L.Joe}

He's 16 years old and a rapper from Teen Top. He's a bad and is the Rebellious Rapper and he's full of badassery.

Name: Yoo Changhyun {Ricky} 

He's 15 years old but older than Changjo. He likes to act cute and is a really bright person. He's the Lovely Boy of Teen Top.

Supporting Characters:

- Lee Chanhee {Chunji}

- Bang Minsoo {C.A.P.}

- Anh Daniel {Niel}