1girl, aya_(idolmaster_starlit_season), black_hair, black_ribbon, blush, border, braid, character_name, dot_nose, dress, frilled_dress, frills, grey_background, hair_ribbon, happy_birthday, holding, holding_microphone, idolmaster, idolmaster_starlit_season, index_finger_raised, knokzm, long_hair, long_sleeves, looking_at_viewer, microphone, one_eye_closed, outside_border, red_eyes, ribbon, scrunchie, solo, standing, thighhighs, twintails, two-tone_background, white_background, white_border, white_thighhighs, yellow_dress, yellow_ribbon, zettai_ryouiki