igarashi kei, tohsaka rin, fate/stay night, fate (series), type-moon, absurdres, highres, 00s, 1girl, aqua eyes, arm support, bare arms, bare legs, bare shoulders, barefoot, black hair, collarbone, covered navel, feet, female focus, full body, hair ribbon, highleg, highleg leotard, highleg one-piece swimsuit, legs, leotard, long hair, long legs, looking at viewer, neck, one-piece swimsuit, red leotard, red one-piece swimsuit, red ribbon, ribbon, serious, sitting, solo, strapless, strapless leotard, strapless one-piece swimsuit, swimsuit, two side up