The MC's gender, ethnicity, age, appearance, likes/dislikes, etc... is never said, so any requests that give such things away are declined.

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

Izuku Midoriya:

He's always worrying that you will walk against something or get depressed. So he tries to do as many fun things with you as he can so you don't get upset. At first he always hesitated and freaked out when he wanted to hold your hand to help you walk around, but eventually he got used to it. If you don't want him to hold your hand or guide you around, he will quickly let go and apologize.

Katsuki Bakugo:

He will hold your hand with a frown, guiding you around. When you thank him for guiding you around, he will huff and say it would be bothersome if you hit everything and trip over things. He doesn't yell around you, he talks in a normal tone because he doesn't wish to frighten you. If someone dares make fun of you, that person is leaving with a big bruise covering their face from where Bakugo's fist slammed down.

Shoto Todoroki:

He couldn't see out his left eye when he was younger for a long time due to what his mother did to him, and losing his left sight sucked so he feels bad for you because if it sucks that much to lose sight in his left eye, he can only imagine how awful it must be for you. He will always assure you everything is okay and help you out with anything you need help with.

Ochaco Uraraka:

When you are about to run into an object, she is quick to run and use her quirk on the object so it floats up and you can calmly walk further, not knowing anything happened. When you go the wrong way, she will giggle and take your hand, telling you you are going the wrong way and she will guide you to your location. When you tell her she doesn't have to do that, she will happily say she's more than happy to help you out.

Tenya Iida:

When you are about to walk into something, he is quick to run over, stumble to a halt and turn you around, telling you what's in front of you and that you were about to walk into it. He got you your favorite book in braille so you can still enjoy reading your favorite book.

Eijiro Kirishima:

If you are scared to walk somewhere because you don't know where everything is, he will gladly pick you up and carry him. When you tell him his arms will hurt, he will grin and say he's strong so you don't have to worry about him.

Tsuyu Asui:

When you apologize to her since she already has to care for her siblings and now you, she will smile and tell you she doesn't mind and she likes helping people. She will help you with dangerous things like cooking.

Momo Yaoyorozu:

She likes to read you books whenever you both are just relaxing. She knows it can be annoying to always get help from everyone and that it might make you feel useless so she tries to let you do everything yourself and if she sees you need help, she will politely ask you if you need help before quickly helping you.

Denki Kaminari:

You once asked him if he's gonna leave you because you can't see, he immediately teared up. When you asked him if he's crying, he cried out of course because that was something so sad to ask him because he would never leave you.

Kyoka Jiro:

She knew she can't always be here to help you so she guided you around the house, helping you learn where everything is and each room until you could walk around yourself without needing her help. She doesn't like leaving you alone for too long so once she's done with school or work, she will immediately rush home, hoping you didn't walk against something or tried to use something sharp and injured yourself.

Fumikage Tokoyami:

If he can't help you because he's busy, he will let Dark Shadow help you. He hates when you have to go down or up stairs, always thinking you will fall so when you go up or down stairs, he is quick aside you, holding your arm while his other hand is on your back, telling you where each step is and how many more are left.

Mina Ashido:

She will wrap her arm around yours, happily telling you she will help you walk to your location. She's always making jokes so you can stay happy. When you get upset, calling yourself useless since you can't see anything nor do anything, she is quick to assure you you can do anything you want, but sadly everything will just be more difficult but she's always here to support and help you so she believes that you can do whatever you wish to do.

Yuga Aoyama:

He always helps you picking out your clothes, and if you wear makeup, he helps you put it on. When you pull something on that doesn't match at all, he is quick to tell you your savior is here and pull a better clothing piece out of your closet.

Eri:

She never met someone blind before so you were fascinating to her. She will wave her hand in front of your view to see if you really can't see, only to yelp and apologize when you take her hand, telling her you can still feel the air hitting you. She tends to ask if you are happy a lot, worrying that you aren't happy because you can't see and then she will try her best to make you smile if you are upset.

Sorry but you cannot request medical requests (so disabilities, disorders, etc...) because I don't feel comfortable writing them when they are requested.