maybe she's a random person who needed saving #16 in short story 01/12/18

Anna Lim moves to a new town, where she will have to start a new school life and get on with it. On the first day, she messes up with the school bully, Felix Lee. Felix uses this chance to make a new victim, and he wont leave Anna alone. One day, Anna disappears as the school queenkas (aka the mean girls) lock her up in a room in the abandoned science department and does something even more cruel. Is there any way Anna can get away from Felix and the queenkas? Or will she have to live with them for the rest of her school years? Will Felix ALWAYS be a bully? Or will he change and be nice to Anna?