1girl, alternate costume, animal ears, black hair, blue archive, blush, breasts, cat ears, cat girl, closed mouth, collarbone, colored inner hair, crop top, grey background, hat, kazusa (blue archive), marisasu (marisa0904), multicolored hair, navel, pink hair, raised eyebrows, red eyes, red skirt, santa costume, santa hat, short hair, short sleeves, simple background, skirt, small breasts, solo, stomach, symbol-only commentary, underboob, upper body