Cats and Coffee

When he expelled his entire First Year Heroics class, that was supposed to be the end of it. Aizawa was going to go home, get some coffee and forget the day ever happened. He wasn't supposed to be the accidental target of a rogue Quirk and end up with four legs and fur. On top of that, he was hopelessly lost somewhere in Musutafu. At least, he was until he was picked up by some timid green-haired child who seemed to be far too alone for Shouta's liking. Something about the kid had an old protective instinct rearing up in him. And he didn't like the way All Might was talking, either.

Fine. UA could wait a bit. He had a Problem Child to look after first.

In which Aizawa is turned into a cat, and adopted by a very lonely third year middle school student named Midoriya Izuku.