joker oowo, mejiro mcqueen (umamusume), umamusume, highres, 1girl, animal ears, aqua bow, blush, bow, bowtie, cardigan, cellphone, closed mouth, ear bow, holding, holding phone, horse ears, horse girl, long hair, long sleeves, looking at viewer, phone, purple eyes, purple hair, purple sailor collar, sailor collar, school uniform, simple background, smartphone, solo, tracen school uniform, upper body, white background, white bow, white bowtie