I Won't Be a Substitute Anymore

Diodio, there are limits to what a substitute can do. One thing I learned from being a short-lived substitute... The more you play tricks, the more you will find that the substitute's ability has limits... Unless you surpass the substitute. I won't be a stand-in anymore, Diodio! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.