2girls, animal_ears, breasts, closed_mouth, crop_top, curtains, greyscale, horse_ears, horse_girl, horse_tail, lips, long_hair, looking_at_viewer, lying, medium_breasts, midriff, monochrome, multiple_girls, navel, on_bed, on_side, panipuri, pillow, shirt, shorts, sirius_symboli_(umamusume), sitting, sleeveless, sleeveless_shirt, smile, solo_focus, symboli_rudolf_(umamusume), tail, umamusume