2girls, ahoge, bare_shoulders, black_dress, blue_background, blue_hair, blue_ribbon, blue_thighhighs, blush, border, breasts, character_name, chromatic_aberration, detached_sleeves, dress, feet_out_of_frame, finger_counting, flower_knot, hair_ribbon, hands_up, knees_up, kotonoha_akane, kotonoha_aoi, large_breasts, long_hair, looking_at_another, looking_at_viewer, microdress, multiple_girls, one_eye_closed, open_mouth, outside_border, pink_background, pink_eyes, pink_hair, pink_thighhighs, red_ribbon, ribbon, rotational_symmetry, short_dress, siblings, sisters, sleeveless, sleeveless_dress, smile, sweatdrop, thighhighs, two-tone_background, voiceroid, white_border, white_dress, wide_sleeves, yoru_no_yamai, zettai_ryouiki