In this au Akaza is a doctor in kimetsu no yaiba school

Every injured or sick students in school got to check on him....Doctor Akaza. Akaza health and helps students and teachers to get better.

And one day, a soccer ball hit you on your face and it was very painful, because the kick was hard enough. You've gone to the aid-room with your friend and when you enter in, you saw Doctor Akaza who was sitting on bed and fixing his glasses. Soon enough he notices you both and got up then quickly got closer to you and asked "What happened?". You told everything that happened, then Akaza sighs and helps you to calm down while trying to sooth your pain and red face. Your friend was also there, trying to help you to calm down.