You cannot request medical requests (so disorders, disabilities, etc...) because I don't feel comfortable writing them when they are requested so please don't request such scenarios.

You can decide why the MC is blind (born without vision, lost vision due to a battle injury, etc...)

Toshinori Yagi/All Might:

He's always carrying you. When you tell him you still have legs, he will blush a little as he says he can't help it and he doesn't wish for you to go through the trouble of having to walk around with no vision. When you try to cook, he is quick aside you, telling you he will cook for you. So basically he tries to do everything, which is very kind of him but it began bothering you because you couldn't do anything without him trying to help you out/taking over so you yelled at him to stop it and let you do stuff yourself. At first he worried and felt upset he couldn't help, but eventually he realized he has to let you be and stop treating you like a baby and only help if you ask for it.

Shota Aizwawa/Eraser Head:

He will always have his scarf wrapped around your wrist or waist so if you are about to walk on the street or into something, he can just tug it and you will be safe. He sleeps less around you so if you need help with something, he can immediately help you. If someone dares to make fun of you, he will glare daggers at the person until they leave then he will tell you to ignore what that asshole said.

Hizashi Yamda/Present Mic:

He doesn't shout around you, he speaks softly so he doesn't shock or terrify you by suddenly shouting. He doesn't wear anything spiky like his leather jacket with spiky shoulders around you so if you forget he wears such a thing and put your hand on his shoulder, you don't hurt yourself. When you tell him he doesn't have to change what he wears because of you, he will chuckle and tell you it's okay and he doesn't mind doing it for you.

Nemuri Kayama/Midnight:

She doesn't treat you differently because you are still the same. She helps you chose your clothes out each morning. She flirts with you more now because she wants to be sure you know that she still loves you even if you can't see.

Keigo Takami/Hawks:

If he wishes to pick you up so he can fly you somewhere, he will always ask permission first so he doesn't terrify you by picking you up suddenly and flying. He likes to feed you different food and making you guess what it is.