1girl, ass, beret, blue archive, blush, capelet, christmas, clothes lift, from behind, fur-trimmed capelet, fur trim, hair bun, halo, hat, kirin (mclovin9610), lifted by self, looking at viewer, looking back, official alternate costume, open mouth, panties, panties under pantyhose, pantyhose, pink eyes, pink hair, red capelet, red headwear, santa costume, serina (blue archive), serina (christmas) (blue archive), short hair, simple background, solo, thighs, underwear, white background