A book that is called a girl but ariano is a vampire and she met a mafia girl

emma

Emma tells the teacher about herself she's from Canada and she's in the mafia and she hates this girl name ariano that is a vampire but she doesn't know that ariano is in the same class as her . And then the teacher says that was good to hear about yourself Emma and now can you sit next to a girl name ariano please thank you so we gonna talk about history can someone tell me about what the mafia is and what gangs there are next is going to being ariano turn of trying to talk to Emma