banzaibanzaibanzai, stay gold (sunlit outsider) (umamusume), stay gold (umamusume), umamusume, commentary request, 1girl, animal ears, breasts, collared shirt, ear covers, grey background, greyscale, hair between eyes, hand up, hatching (texture), horse ears, horse girl, leaf, linear hatching, long hair, looking at viewer, monochrome, multicolored hair, open collar, open mouth, rain, shirt, signature, simple background, small breasts, smile, solo, streaked hair, twig, upper body, wet, wet clothes