deyui, willow (stella sora), stella sora, commentary, english commentary, highres, paid reward available, 1girl, ahoge, ass, barefoot, beach, bikini, bikini skirt, blue bikini, blue sky, blunt bangs, breasts, brown hair, cameltoe, cloud, day, detached sleeves, eyewear on head, feet, large breasts, long hair, looking at viewer, mechanical arms, median furrow, official alternate costume, open mouth, outdoors, purple eyes, see-through clothes, see-through sleeves, side up ring, sideboob, single mechanical arm, sitting, sky, soles, solo, sunglasses, swimsuit, thigh strap, toes, very long hair, white bikini, willow (suntide) (stella sora)