trainer, female trainer, and maruzensky (umamusume) drawn by mugi_(marineblue134)

2girls animal_ears black_bow blue_bow bow brown_hair cropped_jacket ear_bow female_trainer_(umamusume) fist_bump from_behind grey_jacket grey_skirt hair_bow horse_ears horse_girl horse_tail jacket long_hair long_sleeves maruzensky_(formula_r)(umamusume) maruzensky(umamusume) mugi_(marineblue134) multiple_girls red_jacket red_serafuku red_shirt red_skirt school_uniform serafuku shirt skirt skirt_suit suit tail trainer_(umamusume) umamusume