kokuzou, helena (kancolle), kantai collection, absurdres, highres, 1girl, alternate costume, black serafuku, black skirt, black socks, breasts, brown hair, full body, green eyes, holding, holding sheath, katana, loafers, long hair, long sleeves, looking at viewer, medium breasts, medium skirt, neckerchief, pleated skirt, red neckerchief, scabbard, school uniform, serafuku, sheath, sheathed, shoes, skirt, socks, solo, standing, sword, very long hair, weapon, white background