Mha: an ironic twist of fate

In a different universe what happens when Izuku is a late bloomer with the ability to copy quirks. but didn't learn about it till after the sludge villain incident and was told he couldn't be a hero do to being quirkless. Is the path of a vigilante the only way he can do some good? And are hero's really as good or as necessary as society claims? This is the story of how deku became a vigilante that couldn't be stopped by even the entire world working together (mha and Undertale are owned by there respective owners. This story is owned by vampiric mage)