I was here first! Boku No Hero Academia+Attack On Titan x reader

A long, long time ago, strong tall titans roamed the land, Richard highland, was the strongest of all humans, he came and defeated the titans with a single blow,bringing happiness to the whole world. decades later, humans discovered "quirks" which set some, apart from others. Soon, almost the whole world had these superhuman powers and, of course, the highlands where still the strongest. My hero academia is worlds best school, making all the best humans attracted to it. (Y/N) Highland, was humanity's strongest girl, her mother Lillyan being humanity strongest woman, and Levi Ackerman being humanity's strongest boy, not only because of there Strength, but because of there quirks. What happens when a new threat comes? Will they die? Will they survive?