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

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

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misaka mikoto (toaru majutsu no index and 1 more) drawn by ken'ichi_(silvian125jp)

Mikoto Misaka : r/toarumajutsunoindex

Misaka Mikoto, Toaru Majutsu no Index Wiki