Figured It Would Be More Interesting If He Lost His Eye To A Demon As A Child Instead Of Later In Life - Blog Posts

So in Majora's Mask, I read somewhere that the reason Link screams when putting on masks is because he's experiencing the pain the character went through before their death, so I thought it would be interesting if he saw some of the things the Fierce Deity did when putting on the mask. But because in my au Oni isn't dead, just sealed away, they're able to talk in Link's head except the connection goes both way so Oni also saw some of the shit Link went through. Unfortunately the visions only show the bad things(neither know this) so Link only saw the horrible crimes and Oni only saw the bullying Link went through and figured they were the same, having also gone through bullying for being different than the others around him.

Realize at this point in his life, Oni has been sealed away for who knows how long with only his thoughts, so he is very much not a stable person, and is making Link very uncomfortable despite trying to relate to him by making himself look like his child self(they're in Link's head and he's a powerful demon, who's to say he can't shapeshift?).

Also Majora's Wrath is the one that slashed Link's eye with one of its whips, and in a panic he used the Fierce Deity mask, inadvertently letting Oni take control of his body.