akagi koku, rice shower (umamusume), umamusume, commentary, highres, 1girl, animal ears, back bow, blush, bow, closed mouth, collarbone, convenient leg, frilled skirt, frills, full body, greyscale, hair over one eye, hands up, hat, horse ears, horse girl, horse tail, knees up, long hair, long sleeves, looking at viewer, monochrome, pleated skirt, sailor collar, shirt, shoes, simple background, sitting, skirt, solo, tail, thighhighs