4girls, 6koma, admire_vega_(umamusume), air_shakur_(umamusume), animal_ears, bed, bedroom, blanket, breasts, christmas, cleavage, clock, collarbone, comic, dress, ear_covers, ears_through_headwear, exhausted, genderswap, genderswap_(mtf), gift, greyscale, hair_over_one_eye, hat, heavy_breathing, holding, holding_sack, horse_ears, horse_girl, long_hair, marvelous_sunday_(umamusume), monochrome, multiple_girls, nervous_sweating, notice_lines, original, personification, pillow, pom_pom_(clothes), rectangular_6koma, running, sack, santa_dress, santa_hat, sheep_(roasted_mutton), single_ear_cover, sleeping, snowing, speech_bubble, sunday_silence_(racehorse), sweat, twintails, umamusume, visible_air