I just read the ask about Plague Dogs Izuku running like Loca the Pug and now I'm legit crying can we get some good feels about Izuku and Toshi living with human Nedzu?
100% I’ve been waiting for an excuse for this. (Keep in mind, this AU has two, equally canon endings. This is the good ending.)
To start off with, he's a professor at a local veterinary University and a practising veterinarian, so they really couldn’t be in better hands. He’s short, kinda round and 99% of animals adore him. He scares his poor students though.
He takes the two of them to classes so they can meet people who don’t want to hurt them. You kinda have to make Toshi like you first before he’ll let you even look at Izuku. Izuku will walk up to you happy as can be and start licking your leg, all the while Toshi stands behind him looking like he's going to eat you.
They become a pretty big part of his animal ethics and lab animal management lectures. Mostly as a “Dear god please don't do this” example. The lectures he can’t bring them in, he tries to make sure to slap some photos of them in his powerpoints. Izuku running smack bang into things becomes a uni meme.
The first week or two is a mess. A total mess. It goes about as well as it could have which is still terrible. You can’t look at Izuku without Toshi trying to bite you and Izuku won't eat a thing given to him. Nezu is told to straight-up put Toshi down for ‘Behavourial Difficulties” but he's a kind dog when you aren’t near Izuku so Nezu refuses.
Nezu works out that Izuku will eat after Toshi, and that Toshi will always leave food for Izuku, so he just gives Toshi extra food and water. It works pretty well.
The first time they see him in a lab coat the two dogs panic. There is whimpering and snarling and Nezu feels terrible because he didn’t realise. He should have. The cats at the University have something called ‘whitecoat fever’ aka people with white coats do annoying things like pick me up and give me shots. He should have realised the dogs would feel much the same.
Izuku knows that Nezu is a good person. He smells like happy dogs and toast. The whitecoats only smelt like sickness, disinfectant and fear that wasn’t their own. It still takes him a very long time to eat anything from him.
Toshi likes Nezu a lot. He reminds him of the good owner he used to have. He's glad Izuku gets to be with a nice person now, but he can’t help but wonder when their luck will run out.
Toshi (and Izuku. But mostly Toshi) dig a little hole in the back fence so Aizawa can visit. Nezu has watched this happen multiple times and so help him he's going to write a paper about his weird dogs and their fox friend.
Toshi and Izuku have separate beds. They almost never sleep in them. They either both sleep on Toshi’s bed or Izuku falls asleep somewhere weird, Toshi carries him to his bed and settles down in Izuku’s comically small one.
Toshi gets a taste for strawberries. Nezu has a garden, with strawberries. Izuku wants Toshi to have everything he wants, but also realises that Nezu will be mad if he ruins the garden. Izuku learns to gently pick strawberries and carry them back one by one to Toshi. Nezu does a double-take when he sees this little pup delicately nip off a fat strawberry, hold it so it doesn't get damaged, then scamper off to find Toshi to give it to him.
The little pink stains hes been seeing on Izukus forehead have a lot more sense when he sees Toshi, nose covered in strawberry juice, snuffle Izukus face.