sugina miki, kudou sousuke, kudou yuzuha, pianissimo (game), pp: pianissimo, game cg, 1boy, 1girl, barefoot, breasts, brother and sister, brown eyes, brown hair, censored, completely nude, cowgirl position, girl on top, hair ornament, hairclip, hetero, incest, matching hair/eyes, medium breasts, mosaic censoring, muscular, navel, nipples, nude, petite, sex, short hair, siblings, squatting, straddling, sweat, vaginal