1boy, 2girls, animal_ears, barefoot, breasts, clenched_teeth, closed_eyes, closed_mouth, faceless, faceless_male, fingerless_gloves, gloves, greyscale, headlock, horse_ears, horse_girl, horse_tail, long_hair, lying, medium_breasts, midriff, monochrome, mukakin, multicolored_hair, multiple_girls, muscular, muscular_female, narita_brian_(umamusume), navel, on_back, open_mouth, rear_naked_choke, shorts, speech_bubble, sports_bra, sweat, symboli_rudolf_(umamusume), tail, teeth, umamusume, wrestling