A younger brother who is punished by being tossed by an unreasonable older sister who has a weakness. However, the punishment was very naughty and enviable ...! ?? Masami Ichikawa, a slender beauty, challenges incest for the first time by playing with her younger brother regardless of where she is dressed as a slut sister. While smiling mysteriously, the appearance of blaming him with unpleasant lewd words is addictive!