mutsuki (mutsuki0110), shirakawa yuina, heaven burns red, absurdres, highres, 1girl, arm support, arm up, bare arms, bare shoulders, bikini, blonde hair, blue bikini, bracelet, breasts, choker, cleavage, closed mouth, collarbone, earrings, floating hair, from above, hair between eyes, hair ornament, halterneck, jewelry, large breasts, long hair, looking at viewer, medium breasts, navel, official alternate costume, outdoors, pool, poolside, red eyes, sitting, smile, soaking feet, solo, swimsuit, thigh gap, thigh strap, thighlet, very long hair, water