3girls, ?, a.i._voice, black_dress, black_footwear, blue_dress, blue_hair, blush, dress, heart, holding_hands, kotonoha_akane, kotonoha_aoi, leaning_forward, momomo_gasshuukoku, multiple_girls, pleated_dress, purple_dress, purple_hair, purple_thighhighs, red_hair, sidelocks, simple_background, spoken_heart, spoken_question_mark, sweat, thighhighs, voiceroid, white_background, yuzuki_yukari