1boy, 1girl, admire_vega_(umamusume), animal_ears, ao_er_liang_kao_sheng_nu, bad_pixiv_id, blurry, blurry_background, blush, breasts, brown_hair, casual, from_behind, glaring, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, medium_breasts, old, old_man, ponytail, scowl, tail, umamusume