1girl ahoge animal_ears arm_strap blush box brown_hair choker crop_top dated gift gift_box green_eyes green_shirt hair_between_eyes hand_up hat holding holding_box horse_ears horse_girl horse_tail jacket long_hair looking_at_viewer midriff mini_hat mini_top_hat misu_kasumi mr._c.b._(umamusume) navel one_eye_closed open_clothes open_jacket pants puckered_lips shirt simple_background single_bare_shoulder single_sleeve single_wrist_cuff solo speech_bubble standing strapless strapless_shirt tail top_hat translation_request umamusume valentine very_long_hair white_background white_headwear white_jacket white_pants wrist_cuffs