shingo., akita neru, gumi, hatsune miku, kagamine len, kagamine rin, kaito (vocaloid), kamui gakupo, megurine luka, meiko (vocaloid), yowane haku, vocaloid, bad id, bad pixiv id, 2boys, 6+girls, aqua eyes, aqua hair, arms up, ass, ball, beach, beachball, bikini, blonde hair, breasts, brown hair, clothes theft, cloud, day, diving mask, eggplant, front-tie top, goggles, goggles on head, grabbing another's breast, green hair, groping, hair ornament, hairclip, long hair, medium breasts, multiple boys, multiple girls, nude, o3o, outdoors, pink hair, short hair, side-tie bikini bottom, sky, small breasts, snorkel, striped bikini, striped clothes, submerged, swimsuit, swimsuit theft, tears, theft, twintails, undressing, wading, water