gryebooks, kitasan_black_(umamusume), trainer_(umamusume), year_2024, 1boy, 1girl, ahoge, animal_ears, black_hair, blush, breasts, detached_sleeves, failure, hiding, large_breasts, medium_hair, open_mouth, red_eyes, simple_background, sweatdrop, white_background, commentary, translated, umamusume