toji (y2toj2), sirius symboli (umamusume), umamusume, commentary request, highres, 1girl, animal ears, book, brown hair, cowboy shot, hair between eyes, holding, holding book, horse ears, horse girl, horse tail, jacket, long sleeves, looking at viewer, multicolored hair, night, night sky, pants, parted lips, partially unzipped, red eyes, red jacket, red pants, sky, solo, star (sky), streaked hair, surprised, tail, tracen training uniform, track jacket, track pants, white hair, wide-eyed, zipper