Mirio always thought your quirk was so cool, you were unique, you could shoot ribbons from your hands, but that wasn't the interesting part to him, the interesting part was the fact you used the ribbon for basically everything, in the third year common rooms everyone could tell if leftovers were yours, you'd leave a little bow on the container, everyone could tell if it was you with your hair up, a ribbon would suffice as a hairtie, you just used your quirk in ways that made Mirio think about how smart and convenient the ideas were, and to add to it he adored your personality, so you found yourself dealing with Mirio more often then not, you never minded

"Make me pretty!" Mirio says with a wide smile, turning around and bending his knees a little, this was his indirect way of begging you to tie up his hair with one of your ribbons