female trainer (umamusume), narita brian (umamusume), trainer (umamusume), umamusume, commentary request, highres, 2girls, animal ears, blush, bow, bowtie, breasts, closed eyes, greyscale, holding another's wrist, horse ears, horse girl, large breasts, long hair, looking at another, monochrome, multiple girls, open mouth, pleated skirt, ponytail, school uniform, shiotansushi, skirt, smile, sweat, thighhighs, tracen school uniform, yuri