koyama sao, z/x, official art, 1girl, aerial fireworks, black hair, boots, bow, bowtie, breasts, concert, confetti, copyright notice, fireworks, flower, from below, glowstick, green bow, green bowtie, green skirt, hair flower, hair ornament, holding, holding microphone, idol clothes, long hair, microphone, multicolored bow, multicolored bowtie, multicolored skirt, night, night sky, one eye closed, pecteilis, pointing, pointing up, pointy ears, screen zoom, shirt, skirt, sky, sparkle, standing, standing on one leg, white boots, white bow, white bowtie, white shirt, white skirt, yellow eyes