1girl, adapted_costume, black_headwear, black_sailor_collar, black_skirt, blue_eyes, flat_cap, hair_between_eyes, hat, long_hair, looking_at_viewer, midriff_peek, neckerchief, open_mouth, pleated_skirt, red_neckwear, sailor_collar, school_uniform, serafuku, signature, silver_hair, simple_background, skirt, sleeveless, solo, white_background