1girl, black_hair, black_neckerchief, black_socks, blunt_tresses, breasts, crossed_legs, ebifurya, green_serafuku, green_skirt, kantai_collection, kitakami_(kancolle), kitakami_kai_(kancolle), kneehighs, looking_at_viewer, medium_breasts, neckerchief, ok_sign, one-hour_drawing_challenge, open_mouth, purple_eyes, school_uniform, serafuku, simple_background, skirt, socks, solo, twitter_username, white_background