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