Narsha : 

18 years old. She is in Ir-Em High School, in 3rd grade. She moves to Korea from Russia because of what happened in there. She tries to change herself. She used to use her fists mostly in a fight but now she wants to use her brain more. She is a mystery at her new school. She is very strong and knows all kind of arts of fight, she is very smart and very beautiful. She has C- cubed s and she is 1.60cm with a slim body.

T.O.P. :

19 years old. He is a 3rd grde in Ir-Em High School. He is similar to Narsha in character thats the reason he and Narsha hate each other and they are the strongest rivals in appereance, strength and brain. He likes to use his fists more.He has a gang named BIGBANG. Other members of the gang;  G-Dragon, Taeyang,Daesung and Seungri are not that smart so they are able to stay in this school thanks to their family. All of their families are rich.

BTOB:

BTOB also a gang which has 7 members;  Seo Eunkwang (서은광),Lee Minhyuk (이민혁), Lee Chang Sub (이창섭), Lim Hyunsik (임현식), Peniel D. Shin (신동근), Jung Ilhoon (정일훈) and Yook Sungjae (육성재).  They are not smart but also not stupid and they dont do much bad things like BIGBANG does. They are simply bad boys. Lim Hyunsik, Peniel D. Shin, Jung Ilhoon, Yook Sungjae are first years and   Seo Eunkwang, Lee Minhyuk, Lee Chang Sub are 2nd year. They don't take girls seriously and they just use them on bed.Especially Lim Hyunsik. He is a total narcissist. He wants Narsha from the first time he saw her. He simply wants to torture her for not falling for him.

SNSD :

They are a girl gang which has 9 members.   Kim Taeyeon, Jessica Jung, Sunny, Tiffany, Kim Hyoyeon, Kwon Yuri, Choi Sooyoung, Im Yoona and Seohyun.They are a bad girld group who only cares about their appearance. They hate Narsha since they first saw her. Thay use every chance to ruin her. They hang out with each other or BTOB. They do anything to take what they want. Jessica likes TOP so she hates Narsha the most.They all have things they are famous about. Taeyeon, Jess, Tiffany are know with their singing abilities. Hyoyeon is a very good dancer. Yuri and Yoona are preparing to be actresses. Sooyoung and Seohyun are models. And Sunny is an entertainer in most of TV Shows like "Invincible Youth".Sooyoung sometimes helps her with hosting.

Narsha

Very beautiful, smart and the strongest in the School. Noone knows about her. She is new in Ir-Em High School. She is Korean but lived in Russia since she was baby. She is extremly rich,maybe the richest in Korea. But in her fake files She is pretty normal civil. In her fake file her parent are in Russia and sh came to know her country better but in reality She is in mafia and She has the strongest position after the boss and she already has 3 diplomas. She came back to Korea to have a normal life.

TOP

He is the smartest, strongest in the school . He is in the boy gang BigBang. He first likes Narsha but then sees her different and they both start to annoy each other. Without noticing he starts to fall for her. he is kind playful strong rich but not .

G- Dragon

He is the leader of the gang BigBang. He is as smart as TOP and tough. Rich. Becomes best friend with Narsha and finds out about her secret but keeps quit.

Taeyang

n the gang BigBang. Kind and pretty strong, rich. Aside from his look ,still a . Believes in love and at last falls for Kahi, Narsha's best friend.

Seungri

playboy , ofcourse not a vigin. Rıch and not kind. Likes to get in fights. Starts to take interest in Narsha bec. she is unique.

Daesung

not a . strongest in the group Bigbang and in the school. A true beast. Honest stubborn cold likes to sleep with girls.Gets in fight easly. Doesnt like Narsha and always challenges her. But always loses.

Lim Hyunsik  

He is in the boy group BTOB. He is extremely tough and stong but not enough to beat Narsha. He doesnt know anything about Narsha till he sees her doing one of her jobs when he also joined a Mafia newly. At first he likeS Narsha but then he falls in love with her without noticing. He plays pranks on her as a way to connect to her. He is the richest in school after TOP.Even though he is handsome and very cute he doesnt like cute stuffs and very cold.

SungJae Yook

Maknae of the boy group BTOB. Very cute and loves cute stuffs. But he turns into a beast when he fights. He mostly watches aside but joins when he pleases. He secretly likes Narsha.He is rich.

Peniel D. Shin

He is in the group BTOB. His group members call him D. He is the quit type. He doesn't talk much. He is also rich. He is as tough as Hyunsik.

Lee Minhyuk

He is the oldest in the group BTOB together with Eunkwang. He is the playful type and a playboy. He hates school but attends for his group.. He starts a fight with a small comment from the opposite. He is rich.

Changsub Lee

He is also playful like Minhyuk but He believes in love more than being a playboy. But he still sleeps with girls and fights pretty good but doesnt care about fights as long as noone hits him. Rich.

Ilhoon Jung

He is the smartest in the group BTOB. He loves eating. He is also a playboy but also acts cute. He prefers being good friends with girls more than sleeping with them. He cant find as good as other members but can defend himself. Rich.

Seo Eunkwang

 He is the cool leader of boy group BTOB and he is the oldest with Minhyuk in the group. He is very cool and every girl dies to be with him. He and Hyunsik are the  strongest in fighting in the group and he is as smarts as Ilhoon. He is as rich as TOP. Rich.