masaru.jp, z/x, highres, official art, 1girl, balloon, beamed eighth notes, beamed sixteenth notes, bikini, blue eyes, blue sky, bow, bracelet, braid, breasts, brown horns, cloud, cloudy sky, concert, confetti, copyright notice, curly hair, demon girl, demon horns, demon tail, demon wings, double bun, earrings, eighth note, frilled bikini, frills, green bow, hair bow, hair bun, hair ornament, holding, holding microphone, horns, jewelry, large breasts, long hair, microphone, music, musical note, musical staff, navel, open mouth, outdoors, pointy ears, purple bikini, purple hair, sandals, short braid, singing, sky, solo, sparkle, splashing, standing, standing on one leg, swimsuit, tail, twin braids, ugly (z/x), wings