Master of all Classes

in this world, everyone has a class ( Assaian, Samurai, Mage, Viking, Reaper, Gun master, and everyone gets a quirk with their class and people only care about the quirk, not their class if you don't have a quirk you will be treated like irrelevant person Izuku yagi here has a class no quirk but his sister had both so inko and A.M abandon him and later on Izuku found out he did have a quirk called elemental that he can use with his sword ( he's a samurai class) izuku found out he can use all classes and the weapon he picks he can use those quirk and he Changed his name to Izuku Tsugikuni,