~ Park Aerin 

- Age: 16 (December 31)

- Grew up in a broken family. Currently lives with her Dad, Step Mum, and Step Brother

- Been expelled from six different academies 

- Although she doesn't seem like it, she is actually extremely intelligent and can easily surpass anyone's intellect whether at school or in the gangster world

- Well Known gangster. Usually works solo but also other gangs when they need it. Known for her unique ways of attack and murder. Known as the Leader of BTS, under the name Shadow. 

- Cold and unemotional. Believes showing emotion lets other people into your world. Very secretive even with her best friends BTS who know almost everything about her

- Doesn't tolerate people who annoy her or get in her way. If you get on her bad side it's hard to get off her hit list

- Extremely Rich since her Dad owns Park Corporations but also from the amount of money she collects from debts from her underground work

- Martial Arts Master but also extremely athletic

- Multilingual and Multi Talented in many aspects  

~ Bangtan Boys (BTS)

- Aerin's childhood friends

- Know almost everything about her

- Jimin is Aerin's older cousin by a few years

- Are the top gang in Asia with Aerin as their leader. Are the only gang with mixed gender members (boys and girls in one gang)