Momonosuke and Hiyori are happy to see their grandfather who was supposed to be dead and the Straw Hats are surprised when Robin tells them about Pluton the Ancient Weapon. Meanwhile, Momonosuke is kept busy in his role as the new Shogun.
Genres: Action & Adventure , Animation , Comedy
Keywords: adventure , adventurer , anime , based-on-manga , boat , fantasy , fight , friends , friendship , liberation , ocean , pirate , sea , ship , shounen , treasure , watch-TV-series-online-free , watch-anime-series-online , farcical , grave , defiant , wonder , one-piece , sea-adventure , super-power