1girl, animal_ears, armpits, arms_up, barefoot, bed_sheet, black_camisole, blue_eyes, breasts, camisole, grey_hair, grey_tail, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, messy_hair, mouth_hold, on_bed, sitting, small_breasts, solo, tail, tamamo_cross_(umamusume), teaclaw, umamusume, yokozuwari