hisasi, hatsune miku, kagamine len, kagamine rin, kaito (vocaloid), meiko (vocaloid), vocaloid, highres, 2boys, 3girls, :d, aqua eyes, aqua hair, ball, barefoot, beach, beachball, bikini, blonde hair, blue hair, blush, brown eyes, brown hair, day, frilled thigh strap, hug, hug from behind, long hair, multiple boys, multiple girls, navel, one eye closed, open mouth, outdoors, red bikini, short hair, smile, striped bikini, striped clothes, swimsuit, thigh strap, twintails, water, wink, yamaha