matsudo aya, hatsune miku, kagamine len, kagamine rin, kaito (vocaloid), meiko (vocaloid), hikyou sentai urotander (vocaloid), vocaloid, black legwear, 2boys, 3girls, aqua hair, aqua necktie, bare shoulders, black skirt, blonde hair, blue eyes, brother and sister, brown eyes, brown hair, cape, coat, everyone, hair ribbon, hairband, headgear, kneeling, long sleeves, looking at viewer, machinery, multiple boys, multiple girls, necktie, pleated skirt, ribbon, sailor collar, scarf, school uniform, serafuku, short hair, shorts, siblings, skirt, thighhighs, twins, twintails