Kwon Jiyong-

He is an SA Rank Devil class, he tends to be very care-free and always goofing around because he of what happened in his past. He is very clueles when it comes to fighting and girls. He is known through out the underworld thanks to his father. Nothing can seem to get him serious and focus, unless it i something that he really cares for. 

Choi Seunghyung-

He is Jiyong's bestfriend and he is also an SA Rank Devil. He is the exact oppiste of Jiyong. He has a very moody and non-talkative personality because of what happened to his mother. He is not clueless around fighting and girls.He is very serious when it comes to fighting and girls, unlike Jiyong. But when you get to know him, he will never shut up.

Lee Chaerin-

She is from a very Wealthy Family but yet she is not formal. In School, she is known as the baddest female. but at home, she tends to keep things to herself. she doesnt get along with people that much. She has a very selfish personality when it comes to relationships and the boy that she loves. She doesn't really talk that much becuase of what happened.

Lee Park Bom

She is Chaerin's bestfriend.  In school she is known for talking non stop and always goofing around. She's from a very wealthy family but she has no mom. She is the oppisite of Chaerin. Her personality is just like Jiyong but the difference is, she is always serious.