chahiro, gold city (umamusume), umamusume, highres, 1girl, animal ears, blonde hair, blue bow, blue eyes, blue nails, blush, bow, bowtie, breasts, ear bow, ear ornament, ghost costume, halloween, halloween costume, horse ears, horse girl, horse tail, large breasts, long hair, long sleeves, looking at viewer, multicolored nails, open mouth, purple sailor collar, purple serafuku, purple shirt, purple skirt, purple thighhighs, red nails, sailor collar, sailor shirt, school uniform, serafuku, sheet ghost, shirt, simple background, skirt, smile, solo, tail, teeth, thighhighs, tracen school uniform, upper teeth only, white bow, white bowtie