Erotic novel Older sister's cast

The fifth installment of the special novel x Max A collaboration project [Erotic Novel Series] is finally featuring "Onie-san's cast," based on the original work by Ukami Ayano, who won the Newcomer Award at the Japan Erotic Bunko Grand Prize and the 2nd Dan Oniroku Award Grand Prize! The lead role is Konno Hikaru, who is currently gaining popularity. Miyoko (Konno Hikaru) fell down the stairs and injured her leg, and was unable to stand alone. Because of the inconvenience, I was unable to go to the bathroom and ended up wearing diapers. A full-scale drama that will surely make you excited by the cousin she's always dreamed of, and she's not even washed! !