[A/N: a BNHA/MHA crossover AU.]
Even in a world full of superheroes and supervillains, Danny was weird.
At first, it was because they didn't know what his quirk even was.
He had first been labeled with a vocal quirk because throughout his infancy whenever he cried, he shattered glass. There was also the time when he was four years old, he screamed so loud when the doctor gave him a shot that he ruptured one of his Dad's eardrums and gave the doctor and both his parents' tinnitus.
When he was five his sister lost him during a game of Hide and Seek. It took hours to find him and even longer to understand how he had done it. It was worse when they lost him outside. One second he'd be there, and the next he was gone. It took weeks to finally catch it on film, him clearly disappearing.
The doctors were stumped, how could a single person have a sonic scream and invisibility? It had to be a subset of his true quirk. But what did those two things have in common?
Then he got to school and became very clumsy. He insisted he wasn't doing it on purpose, that he wasn't dropping anything, that things were falling through him.
The Fenton's were besides themselves with worry. No one in their family had quirks this intricate. They did everything they could to keep their boy safe. They spent so much of their time finding ways to Danny-proof the house.
It got even harder when he started to float.
The best the doctors could figure was that his quirk was unstable, only half-formed. They suggested that he try to repress it before he got himself hurt.
It wasn't until he was almost 14 that a simple conversation with his friends, that they realized what it was.
He had a ghost quirk. His abilities finally made sense.
But he was still weird.