friend's sister

After taking a bath, my older sister Misora ​​wanders around the house wearing only a bath towel. It's a familiar sight to his younger brother Naoya, but Naoya's friend Masayuki, who was visiting, is stunned when he sees Misora. Masayuki, who has no immunity to women, can't help but bulge out his crotch as Misora ​​relentlessly presses her body against him. Misora, knowing or not knowing this feeling, invites Masayuki to stay over tomorrow. The next day, Masayuki visits the Aoki family with a heavy nose, but...