So a small snippet of an Erasermic Soulmate AU in which when you can't see colors until you meet your soulmates! (This was also slightly based off an idea that @o0fyuu0ouu0o once talked about on the bird app in which Shouta was naturally colorblind.)
Hizashi goes to the library the day before going back to school and finds a book that describes color for those who've found their soulmates. He sits with it in a corner and traces over the colors and the descriptions next to them, along with the various examples of and pictures of what might be those colors in awe for hours. (Sundays are usually days in which his family spends doing their own thing, and occasionally they'll let him have the day to himself so long as he's in his room by curfew and doesn't embarrass the family in any way. Sitting in the library is usually what Hizashi ends up doing.) He looks in the mirror after that, taking the book with him into the library restroom (one of the librarians seeing the title with a knowing eye and letting him). He stares at the pages and then looks at his eyes, the barely there spots on his face, his tightly bound hair. Green eyes, with darker green rings. Light brown freckles, so light one can barely see them. Yellow...no, blonde hair, like wheat or even sunshine. Hizashi stares at himself for a long time. What does his soulmate think of the way he looks? Does he like the different colors of him? Is it better than the different shades of grey he was before? Hizashi didn't realize he had freckles until he could see color, so maybe... But not everyone likes freckles, so what if - what if that's why his soulmate wasn't there to talk to him after their fight in the Sports Festival? What if he didn't like his colors? Hizashi slams the books closed and hurries out of the restroom, leaving the book on a table before rushing out of the library.