2girls, blue_skirt, breast_press, breasts, brown_shirt, collared_shirt, cowboy_shot, green_eyes, grey_hair, hair_tie, half_updo, higurashi_no_naku_koro_ni, holding_hands, incest, large_breasts, long_hair, looking_at_viewer, multiple_girls, parted_bangs, parted_lips, pleated_skirt, ponytail, red_skirt, school_uniform, shirt, short_sleeves, siblings, sisters, skirt, smile, sonozaki_mion, sonozaki_shion, twincest, twins, white_background, white_shirt, whither_laws, yuri