2girls :d ahoge animal_ears ass black_skirt blush braid brown_eyes brown_hair chair collared_shirt cowboy_shot dutch_angle from_behind green_ribbon hair_ribbon highres horse_ears horse_girl indoors kitasan_black_(umamusume) long_hair long_sleeves looking_at_viewer medium_hair multicolored_hair multiple_girls nakahira_guy necktie office_chair office_lady open_mouth pencil_skirt red_eyes red_necktie ribbon satono_diamond_(umamusume) shirt sitting skirt smile standing streaked_hair swivel_chair teeth umamusume upper_teeth_only very_long_hair white_hair white_shirt