yuki usagi (agtd5758), marvelous sunday (umamusume), umamusume, absurdres, highres, 1girl, animal ears, black hair, breasts, curvy, excited, fang, grass, hand on own hip, head tilt, horse ears, horse girl, horse tail, huge breasts, kneehighs, looking to the side, medium hair, on grass, open mouth, pointing, pointing forward, purple sailor collar, sailor collar, school uniform, skirt, socks, solo, star (symbol), tail, thick thighs, thighhighs, thighs, tracen school uniform, twintails, white background, white thighhighs