Reborn as fellswap san and now I'm kinda blind!?

What if..someone from our world was reborn as fellswap sans? But an accident when he was young leads to becoming blind for a long time and papyrus feels guilty about not protecting them enough. Now they just act like they are the boss of their older sibling in public but behind the doors lays a mostly happy family just hugging and all that stuff...

(Different personalities because I suck at unknown Personalities that I don't really know much besides fan fiction and undertale comics) also things will be different on the multiverse or au's like ages and such and the names or a certain au or whatever I'm not good at it