kitasan black (umamusume), umamusume, highres, 1girl, 323mihumi, ahoge, animal ears, black hair, blush, breasts, closed mouth, clothing cutout, detached collar, ear ornament, green eyes, hair between eyes, hair ornament, heart, heart hair ornament, heart hands, horse ears, horse girl, horse tail, looking at viewer, medium hair, meni shuki rush-sshu!, midriff, multicolored hair, one eye closed, pink background, pink shirt, pink skirt, red eyes, shirt, shoulder cutout, skirt, smile, solo, streaked hair, tail, white hair