isaya (pixiv4541633), hakui koyori, kokoro (hakui koyori), hololive, absurdres, highres, 1girl, animal ear fluff, bell, belt, black pantyhose, bow, bowtie, box, capelet, christmas tree, curtains, dress, fang, fur-trimmed capelet, fur-trimmed dress, fur trim, gift, gift box, hair ornament, hairclip, indoors, looking at viewer, lying, neck bell, on side, open mouth, pantyhose, pink hair, plaid clothes, plaid scarf, purple eyes, red bow, red bowtie, red capelet, red dress, red scarf, santa costume, scarf, skin fang, solo, tail, virtual youtuber, window, wolf, wolf girl, wolf tail