kobayashi yuji, eureka (eureka seven), eureka seven, eureka seven (series), eyebrows, highres, 00s, 1girl, aqua hair, artist name, ass, back, barefoot, breasts, feet, female focus, from behind, full body, gluteal fold, head tilt, holding, looking to the side, nude, open clothes, open towel, outstretched arms, parted lips, purple eyes, see-through clothes, simple background, small breasts, solo, spread arms, standing, towel, uncensored