Save Me! (Boku No Hero Academia x reader)

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Running.
Running away w- wait. That's the summary for my first book. Let's fast forward time for a bit, okay?

When (Y/n) (l/n) got her grimoire when she was 13 years old, (I know they get it when they're 15 years old, it just better fit into the story.) As we all know, she gotten the last grimoire of her generation. But what if there was a mission gone wrong and somehow got in the world of Japan where there's a high school that allows students to become heroes in training so they can become heroes?
"It's okay Izu-kun! If no one is nice to you, then you just have to become that person that someone else needs!"

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As you can tell this is a crossoverstory base on my first book(Black Clover) and this main storyline (Boku No Hero Academia). You don't need to read it to understand this story, but it'll use a lot of references from it.

Reader may seem op but that is because she is more experience of being a 'hero' than them.