herohero (higashi no dou), air groove (umamusume), umamusume, absurdres, highres, 1girl, alternate costume, animal ears, apron, bare arms, blush, breasts, cleavage, closed mouth, dress, embarrassed, frilled apron, frills, greyscale, hair between eyes, horse ears, horse girl, horse tail, large breasts, looking at viewer, low neckline, maid, maid apron, maid headdress, monochrome, short dress, short hair, solo, tail, wrist cuffs