natsunagi nei, hatsune miku, kagamine rin, vocaloid, 00s, 2008, 2girls, aqua eyes, aqua hair, aqua nails, back, belt, blonde hair, blue eyes, blush, chocolate, crop top, detached sleeves, female focus, finger sucking, finger to mouth, hair ornament, hair ribbon, hairclip, happy valentine, headset, long hair, looking at viewer, looking back, multiple girls, nail polish, necktie, open mouth, pleated skirt, ribbon, school uniform, serafuku, short hair, shorts, skirt, smile, twintails, valentine, very long hair