himitsu onigiri, nemo (fate), professor nemo (fate), fate/grand order, fate (series), ..., 1boy, beret, black bow, black sailor collar, blush, bow, brown hair, closed mouth, crossdressing, crossdressing (mtf), glasses, hair bow, hat, long hair, long sleeves, looking at viewer, multiple hair bows, neckerchief, round eyewear, sailor collar, school uniform, serafuku, simple background, solo, spoken ellipsis, trap, upper body, white background