nakahira_guy, mejiro_dober_(umamusume), year_2024, 1girl, 2024, animal_ears, blush, bow, breasts, character_name, closed_mouth, collarbone, dutch_angle, ear_ornament, hair_ornament, happy_birthday, horse_ears, horse_girl, horse_tail, long_hair, long_sleeves, looking_at_viewer, medium_breasts, pleated_skirt, purple_serafuku, purple_shirt, purple_skirt, ribbon, sailor_collar, school_uniform, serafuku, shirt, simple_background, skirt, solo, tail, tracen_school_uniform, tsundere, white_bow, winter_uniform, commentary_request, umamusume