1girl, black_gloves, blue_background, blurry, blurry_background, blush, breasts, confetti, cowboy_shot, dated, dress, gloves, hair_ribbon, hands_up, happy_birthday, heart, heart_hands, idol, idolmaster, idolmaster_million_live!, lace-trimmed_skirt, lace_trim, layered_dress, looking_at_viewer, makabe_mizuki, mochigome_(ununquadium), purple_hair, red_dress, ribbon, short_hair, sidelocks, skirt, sleeveless, sleeveless_dress, small_breasts, smile, solo, stage, thighs, tiara, wavy_hair, yellow_eyes