Gimai Seikatsu - LightNovelPub Learn more From classmates to brother and sister, living under the same roof.After his father’s remarriage, Asamura Yuuta ends up getting a new stepsister, coincidentally the number one beauty of the school year, Ayase Saki. Having learned important values when it comes to man-woman relationships through the previous ones of their parents, they promise each other not... Learn more