Regarding clothes, Komura generally wore the clothes his mother bought at Shi●mura, a Japanese clothing brand. Mie likes to wear anything comfortable, so she likes one piece dress.
Also one of my dirty fantasies is that when they're older and dating, Komura's gonna gently remove her glasses before kissing. Repeats of this lead to 'Komura removing Mie's glasses' being a sign of something intimate for the two of them. Maybe kissing while handholding.