astraea (sora no otoshimono), ikaros, mitsuki sohara, nymph (sora no otoshimono), sakurai tomoki, satsukitane mikako, sora no otoshimono, absurdres, highres, official art, scan, 5girls, aqua eyes, bikini, black eyes, blonde hair, blue eyes, blue hair, blush, breasts, brown eyes, brown hair, chibi, cleavage, collar, hair ribbon, innertube, large breasts, long hair, multiple girls, navel, open mouth, pink hair, purple hair, red eyes, ribbon, short hair, sitting, smile, submerged, swim ring, swimsuit, wading