watou, agnes_tachyon_(lunatic_lab)_(umamusume), agnes_tachyon_(umamusume), year_2024, 1girl, afloat, ahoge, animal_ears, barefoot, bikini, black_bikini, breasts, brown_hair, caustics, closed_mouth, criss-cross_halter, ear_ornament, hair_between_eyes, halterneck, horse_ears, horse_girl, horse_tail, innertube, leg_belt, looking_at_viewer, navel, optical_illusion, red_eyes, short_hair, simple_background, small_breasts, smile, solo, swim_ring, swimsuit, tail, toes, water, white_background, wristband, absurdres, highres, umamusume