igarashi (morimorienoki), kagamine len, kagamine rin, vocaloid, commentary request, 1boy, 1girl, ^ ^, anniversary, bare shoulders, black sailor collar, black sleeves, blonde hair, blush, bow, brother and sister, cheek-to-cheek, closed eyes, collarbone, colored mouth, colored tongue, detached sleeves, grey background, greyscale, hair bow, hair ornament, hairclip, happy, headphones, heads together, headset, holding hands, interlocked fingers, limited palette, lower teeth only, medium hair, monochrome, neckerchief, necktie, open mouth, ponytail, sailor collar, shirt, short hair, short ponytail, short sleeves, siblings, sleeveless, sleeveless shirt, smile, spot color, swept bangs, teeth, twins, upper teeth only, yellow nails, yellow neckerchief, yellow necktie, yellow tongue