2girls, 2koma, >_<, animal_ears, asphyxiation, bare_shoulders, black_hair, blue_eyes, blue_one-piece_swimsuit, bob_cut, breasts, brown_hair, comic, competition_school_swimsuit, crossed_legs, drowning, ear_scrunchie, eishin_flash_(umamusume), emphasis_lines, horse_ears, horse_girl, horse_tail, large_breasts, multiple_girls, one-piece_swimsuit, pool, school_swimsuit, scrunchie, short_hair, silent_comic, single_vertical_stripe, smart_falcon_(umamusume), swimsuit, tail, tail_through_clothes, tracen_swimsuit, twintails, umamusume, white_scrunchie, yonedatomo_mizu