Riona Minami slays perverted older brothers one after another in braids. A brother who loves saliva, a devil brother who gets excited by his sleeping face and visits at night, a sexual harassment brother who teaches hot-blooded Sparta, and a perverted brother who teaches lotion play. Riona is reluctant at first, but she is curious about naughty things, and gradually enters the world of forbidden incest with her older brother.
