Yankee-kun to Hakujou Gaaru - Vol. 5 Ch. 83.5

[MangaDex]

 

[SilverSun]

I thought the same as the manager.. so they can't really read them? Bunch of thing that are related to support people mostly are in braile tho.
I learned a lot

 

[JustAU-]

I swear Aono would be the Old Blind Swordsman who would f your sh*t up with a stick while chuckling

 

[NicholasTurner]

Well they can Technically see sort of slightly so they didn't feel the need to learn brail.