1girl, 9610_(kuroto), black_neckerchief, blue_eyes, blue_hair, crop_top, dated, detached_sleeves, isuzu_(kancolle), isuzu_kai_ni_(kancolle), kantai_collection, long_hair, midriff, navel, neckerchief, one-hour_drawing_challenge, pleated_skirt, red_skirt, sailor_collar, school_uniform, serafuku, shirt, simple_background, skirt, solo, twintails, upper_body, white_background, white_sailor_collar, white_shirt