Do they ever explain why Mikoto wears shorts under her skirt? : r

Misaka Mikoto, Toaru Majutsu no Index Wiki

How would the story of Naruto change if Mikoto adopted him as she was friends with Kushina? - Quora

A Certain Scientific Railgun Everyone is Proactive When it Comes to This - Watch on Crunchyroll

Mikoto with her shorts visible by Tanaka Yuuichi : r/toarumajutsunoindex

misaka mikoto (toaru majutsu no index and 1 more) drawn by honwaka_zz

A Certain Scientific Raingun T 1/7 Scale Misaka Mikoto Pre-painted PVC Statue 15th Anniversary

a fun fact I never see anyone bring up: mikoto is a gyaru, specifically a kogal/kogyaru. this is confirmed by her general attitude and behavior, along with the fact that in gt1

misaka mikoto and shirai kuroko (toaru majutsu no index and 1 more) drawn by ranosaku

Now I understand why misaka wears shorts! it's because she doesn't wanna show her childish underwear to the public : r/toarumajutsunoindex

Theories on how Misaka's railgun works : r/toarumajutsunoindex