heysho, hatsune miku, kagamine len, kagamine rin, kaito (vocaloid), meiko (vocaloid), vocaloid, bad id, bad pixiv id, + +, 2boys, 3girls, aqua eyes, aqua hair, armpits, arms up, ball, beach, bikini, black bikini, blonde hair, blue eyes, blue hair, blue male swimwear, blue scarf, blue swim trunks, brown eyes, brown hair, crab, crustacean, day, flame print, frilled bikini, frills, green one-piece swimsuit, hair ornament, hair ribbon, hairclip, long hair, male swimwear, multiple boys, multiple girls, ocean, one-piece swimsuit, one eye closed, outdoors, print male swimwear, print swim briefs, print swimsuit, red bikini, ribbon, scarf, short hair, sky, smile, sun, swim briefs, swimsuit, take it home, twintails, umbrella, white male swimwear, white swim briefs