autistic monoma/monodeku headcanon where monoma is HYPOsensitive to stimuli but izuku is HYPERsensitive.
basically the idea is that monoma does sensory seeking stuff that izuku usually avoids bc it overstimulates him, and when he does izuku thinks hes a mad man every time.
ie: brushing his teeth with mint toothpaste, talking loudly, touching everything that he can get his hands on.