1girl, agnes_tachyon_(umamusume), ahoge, animal_ears, black_pants, blush, box, brown_hair, closed_eyes, earrings, emil1030_blue, erlenmeyer_flask, flask, gift, gift_box, heart, holding, holding_gift, horse_ears, horse_girl, horse_tail, jewelry, looking_back, medium_hair, multiple_views, notice_lines, off-shoulder_shirt, off_shoulder, open_mouth, pants, purple_shirt, red_eyes, round-bottom_flask, shirt, single_earring, smile, tail, twitter_username, umamusume, valentine