kei (keigarou), kagamine len, kagamine rin, vocaloid, official art, 1boy, 1girl, arm warmers, bass clef, black leg warmers, blonde hair, blouse, blue eyes, bow, brother and sister, gold trim, hair bow, headphones, headset, leg warmers, looking at viewer, neckerchief, number tattoo, ponytail, sailor collar, shirt, short ponytail, short shorts, shorts, shoulder tattoo, siblings, sleeveless, sleeveless shirt, spiked hair, swept bangs, tattoo, treble clef, twins, white shirt, yellow neckerchief