Their New Teacher Is The Godfather

Adrian is the "Saint", the new godfather who controls the underworld. But his father left a will that requires him to be a teacher for three months, and for the inheritance, he has to go. He arrives in Veylcrest Prep, where he must deal with Class Zero, a bunch of wealthy heirs ready to mess their teachers. He easily dodges the teenagers's schemes and leads them back on track, finding peace in himself on this unique journey.