* Based on the Toaru Kagaku no Railgun manga written by Kamachi Kazuma and illustrated by Fuyukawa Motoi, which in itself is a spin-off of the light novel, manga and anime series Toaru Majutsu no Index.

As Misaka and the gang decide what to do for the day, they encounter Konori-senpai handing out pamphlets for her childhood public bathhouse; it is struggling with slow business and facing closure. Wanting to help out, the gang comes up with a unique idea to save the bathhouse...

— written by CDB-Man

Note: Bundled with the Toaru Kagaku no Railgun S official visual book.

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Parent story: Toaru Kagaku no Railgun S