(you can be Muichiro or Yuichiro or any of the other characters from demon slayer, or be your own character in this scenario Yuichiro is alive or he can be a ghost if you want him to be)

(so you are his very overprotective friend your Kuboyasu)

Endeavor has become overprotective of Toya ever since he got burned by his quirk in that fire and now he won't let Toya be alone anymore and he does everything for Toya he baby him so much that Toya siblings are starting to get jealous

Endeavor becoming overtective of Toya and won't let Toya out of his sight and Toya refuse to eat and the Endeavor put him in his lap and make him eat your Toya

Fat Gum was doinghis job with is pretty much just to take care of Tamaki Amajiki

Nathaniel mother and Father are very overprotective of him and they treat him like his still a little kid(your Nathaniel)

(Tamaki Amajiki being you was putting himself down and Fat Gum made a new rule that Tamaki amajiki (you) are going to get fed at random times when you put yourself down)