While trying to figure out what to do with their free time, the girls come upon Mii handing out flyers for a classic public bath in School District 7. Apparently, the public bath is in trouble as no one is coming there anymore, and Mii is helping out because the bath has sentimental value for her when she was younger, specifically during her time as a member of Big Spider.
The girls brainstorm on what to do, with Mikoto saying to put Gekota toys in the bath, while Ruiko suggesting in making up and spreading an urban legend about tossing coins into the bath to become prosperous or finding true love. Kuroko however suggests of using Mikoto's powers for an electric bath, and everybody is inclined to agree. Mikoto eventually acquiesces to her suggestions. They later help out on promoting this novel idea.
It works and the bath becomes popular with women. However, Kuroko goes overboard after pulling out a liquid soap form nothing, flooding the bath with foam, and forcing Mikoto to shock Kuroko as punishment. The guests later leave and the girls give them a complimentary Musashino milk to go.
The girls then have the bath all to themselves, except Kuroko which is tied up and becomes increasingly erratic as she overhears the girls trying to wash other, especially Mikoto. Mikoto later eventually frees her, on the one condition that she does not remove her blindfold. However, this does not prevent her from being perverted, causing Mikoto to shock her again.
After the bath, the girls themselves decide to drink Musashino milk. They however, notice that every time Mii drinks milk her breast moves, eventually it escapes the confines of Mii's towel, much to her embarrassment. The girls notice this, and they all recall the times Mii has been drinking the milk. Seeing that they want to enlarge their chests, the girls gather bottles of Musashino milk, and begin drinking in a frenzy. It doesn't go quite well.
Rating: 7.5/10