2girls, alternate_eye_color, arched_back, arm_support, black_dress, black_footwear, blue_eyes, blue_hair, blue_ribbon, blue_thighhighs, blunt_bangs, blush, boots, character_name, closed_mouth, collared_dress, cube, detached_sleeves, dress, flower_knot, full_body, hair_ribbon, knee_boots, kotonoha_akane, kotonoha_aoi, long_hair, looking_at_viewer, multiple_girls, pink_eyes, pink_hair, pink_thighhighs, red_ribbon, ribbon, short_dress, siblings, sidelocks, sisters, sitting, sleeveless, sleeveless_dress, smile, symmetry, thighhighs, tmasyumaro, upturned_eyes, voiceroid, white_dress, white_footwear