Crafter High

You are walking home from school one day when a mysterious lady approaches you. She introduces herself as Alex and says she sees potential in you. She brings you to a place you never knew about called Crafter High where people seemingly have superpowers. She says that you might to, but you'll have to train here to discover them. However, everything isn't sunshine and rainbows as evil creatures called Mobs lurk the streets and Crafter's are tasked with killing them. For some reason they're becoming stronger and are planning plots...