akagi koku, rice shower (umamusume), umamusume, commentary, highres, 1girl, animal ears, back bow, blush, bow, bowtie, closed mouth, frilled skirt, frills, full body, greyscale, hair over one eye, hand up, hat, horse ears, horse girl, horse tail, long hair, long sleeves, looking at viewer, lying, monochrome, on side, pleated skirt, sailor collar, shirt, shoes, simple background, skirt, solo, tail, thighhighs, zettai ryouiki