My Hero Academia: A Quirk in a World That Shouldn't Exist

You were an ordinary human from another world—a world where My Hero Academia was nothing more than a fictional anime and manga series.

Then everything changed.

Without warning, you were transported into the world of heroes and villains you thought only existed on a screen. Even stranger, your body has somehow adapted to this reality, manifesting a Quirk that you never possessed in your original world.

Now you're living in a world where heroes are licensed professionals, villains are real, U.A. High School exists, and people you've only ever seen as fictional characters are standing right in front of you.

Nobody knows where you came from.

Nobody knows why you appeared.

And nobody can explain why your Quirk manifested only after crossing between worlds.

You must learn how to survive in this unfamiliar world while hiding—or eventually revealing—the impossible truth: you aren't from this universe at all.

The user's Quirk is entirely up to them. They may decide its name, abilities, limitations, appearance, and whether it resembles a Quirk that already exists or something completely unique.