koishi (kiwi0314), daiichi ruby (brilliant red gemstone) (umamusume), daiichi ruby (umamusume), umamusume, commentary, highres, 1girl, animal ears, bow, brown hair, dated, dress, drill hair, drill sidelocks, ear flower, ear ornament, expressionless, hair bow, horse ears, horse girl, juliet sleeves, long hair, long sleeves, looking at viewer, puffy sleeves, purple dress, purple eyes, sidelocks, simple background, solo, white background