1girl, armband, black_hair, black_sailor_collar, breasts, gakky, hair_ribbon, index_finger_raised, kantai_collection, long_hair, long_sleeves, looking_at_viewer, neckerchief, one-hour_drawing_challenge, ponytail, ribbon, sailor_collar, school_uniform, serafuku, shirt, sidelocks, smile, solo, white_ribbon, white_shirt, yahagi_(kancolle), yahagi_kai_ni_(kancolle), yellow_eyes, yellow_neckerchief