rohgun, edomae lunar, seto sun, seto no hanayome, 00s, 2008, 2girls, :d, arms up, ass, bandeau, bandeau bikini, beach, bikini, bikini top only, breasts, brown eyes, brown hair, fins, fish tail, long hair, looking at viewer, looking back, lying, mermaid, mermaid tail, mermaid transformation, monster girl, multiple girls, on back, on side, open mouth, outdoors, pink eyes, pink hair, pink tail, pun, scales, short hair, smile, swimsuit, tail, twintails, underboob, yellow tail