trainer, t-head trainer, mr. c.b., and katsuragi ace (umamusume) drawn by usako_(umauma0602)

2girls animal_ears black_hair blue_eyes blush_stickers brown_hair chibi closed_eyes commentary_request flying_sweatdrops gym_shirt gym_shorts gym_uniform hair_ornament hairclip highres horse_ears horse_girl horse_tail jacket katsuragi_ace_(umamusume) long_hair mr.c.b.(umamusume) multicolored_hair multiple_girls parted_lips ponytail red_shorts shirt shorts streaked_hair sweat t-head_trainer_(umamusume) tail track_jacket trainer_(umamusume) translation_request umamusume usako_(umauma0602) very_long_hair white_hair white_shirt