illyasviel von einzbern, fate/stay night, fate (series), artist request, 00s, 1girl, barefoot, blue one-piece swimsuit, blue school swimsuit, blush, breasts, bush, chain-link fence, collarbone, fence, grey hair, innertube, long hair, looking at viewer, name tag, one-piece swimsuit, one eye closed, open mouth, pool, red eyes, school swimsuit, small breasts, smile, soaking feet, sun, swim ring, swimsuit, twintails, water, wink