Do Kyungsoo (18) - a boy who was born and raised with wealth. Everything that surrounds him respects him, not only his family is rich and well-known, but because he is known to be a kingka in school. The most famous but tiny kingka. He is stubborn, arrogant, and sometimes cold towards others. He knows how to shut people out of his life. He has bestfriends, whom they call themselves EXO, and also, he has a brother who is three years older than him, Do SeungSoo. All other girls are having hard time getting near him, but one girl stands out the most, Kim YoungMin, his most bestfriend out of all bestfriends. Out of his stubborness and arrogant attitude, it was only her that stood by his side, but what if, he will also shut her out of his life and forced her to get out of his life, will he win her back? Will he win her heart back to him?

Kim YoungMin (18) - a girl who is born and raised with wealth, but she's different with other girls who was born that way. She was quiet, humble, down to earth and very friendly, but ome girls just really hate her, they think she was just putting some act so she will gain attemtion from the kingka's of the school, and also from Do Kyungsoo. It's not that she makes effort for him to be with her, it's just that their family were good friends and business partners. She is also friends with other the EXO group. She has a secret, a secret that only herself knows. People think that it was Do SeungSoo, who is her long time crush is the one she really like or love, but what if it was the other way around? What if the person that she was loving for all the time, shut her out, will she be able to live her life? Will she be able to open her heart again to that person?

Park Chanyeol (18) - a rich boy and kingka who is one of Kyungsoo's bestfriend. A so-called happy virus. He is also friends with YoungMin and also, she has a secret crush on her that he tried to hide it. What if he sees his one and only love being hurt by his bestfriend. will he stand back or will he fight for her and tries to win her heart?

Byun Baekhyun (19) - rich boy and also a kingka along with chanyeol and kyungsoo. childish and a happy go lucky person and always stands by everybody's side. Very nice to YoungMin, he treats her like she is his own sister.

Kim Joonmyun or Suho (20) - the eldest out of kingka's and also in line to be the next heir of their business. Older Brother of Kai and Cousin of YoungMin. A very quiet and patient person, but always sees if there is a problem between his friends.

Kim "Kai" Jongin and Oh Sehun (17) - the maknaes of the group. Considers YoungMin as their own Noona. They claim that they own her and they should only be her Dongsaengs. Rich young kids and also Kingka's of school.

Do SeungSoo (21) - Kyungsoo's older brother. Responsible and a little bit quiet. A total opposite of Kyungsoo.

Han Yura (18) - considered queenka of school. hates YoungMin very much because she thinks YoungMin is stealing Kyungsoo from her, wherein, Kyungsoo is not hers at all.