Totsuzen Imouto Ni Natta Doukyuusei To Doukyo Suru Koto Ni Natta Hanashi

突然妹になった同級生と同居することになった話, A Story about Living Together with a Classmate Who Suddenly Became My Younger Sister, Totsuzen imouto ni natta doukyuusei to doukyo suru koto ni natta hanashi

Kanchigai No Atelier Meister