ONE PIECE（ワンピース）【51巻】

魚人島を目指すルフィ達はシャボン舞う島へ到着。だがそこは、古き歴史が残る異様な島だった！　さらに11人、"億"を超える賞金首が集結し、新たな事件が勃発!?　"ひとつなぎの大秘宝"を巡る海洋冒険ロマン!!

Luffy and crews who aim for Fishman Island arrive to the  bubble islands. However, there was an unusual islands where the old history remained! Further, 11 bounty more than "billion" prize money gathered, a new incident broke out? Ocean adventure romance surrounding "The great treasure"!