Description: Asahi Kirisaki, who was just taking it easy during his summer vacation, finds out that his grandmother has been hospitalized. And his grandma's hospitalization put the Sento she ran in danger of having to close permanently. Wanting to do something about it, he talked to his sister, Jun Kirisaki, about it. She asked him if he was really serious about it. After Asahi replied "of course I'm serious!", Jun handed him a paper bag. Inside there was a wig and girls' clothes. Jun explained the basic rule of Himenoyu which Asahi had totally forgotten: that it has to be a woman sitting behind the attendant's booth. What will happen to Sento in the future? Can Asahi pull off his crossdressing without being exposed?