ken (shutenndouji1), eishin flash (reines plaetschern) (umamusume), eishin flash (umamusume), umamusume, absurdres, highres, 1girl, animal ears, bare shoulders, bikini, black hair, blue bikini, blue eyes, blue sky, blush, braid, breasts, cleavage, closed mouth, cloud, ear ornament, hair between eyes, hair ornament, horse ears, horse girl, horse tail, inflatable raft, large breasts, looking at viewer, lying, medium hair, official alternate costume, official alternate hairstyle, on stomach, outdoors, sky, smile, solo, swept bangs, swimsuit, tail, water