1girl, argyle, argyle jacket, bangs, black background, black footwear, border, breasts, chest belt, choujin x, cleavage, copyright name, cowlick, dark, dark background, greyscale, hair over one eye, ishida sui, large breasts, looking at viewer, medium hair, monochrome, no pants, off shoulder, official art, partially unbuttoned, simple background, sleeves past fingers, sleeves past wrists, solo, tsumuji nari (choujin x), white border, white hair