1girl, animal_ears, balloon, belt, blush, boots, cat_ears, collar, collarbone, flower, flower_wreath, happy_birthday, holding, holding_balloon, jacket, long_hair, looking_at_viewer, open_mouth, purple_eyes, simple_background, sleeveless, solo, thighhighs, virtual_youtuber, water, yozuna_niu, neo-porte, year_2023, 