Episode 521

"The Battle Begins! Show the Training Results!" is the 521st episode of One Piece.

Summary
The episode starts in grove #17 where thousand sunny is and the crew of the straw hat pirates.Rayleigh give Nami an information about the weather in New World then they are talking about Luffy,how he change after 2 years and if he caught up in some trouble.If Luffy,Zoro and Sanji come they will go at grove #42 and set sail for the New World.Chopper have something on his mind if they caught into trouble.At the beginning Brook get away with the Rosy Life Riders,in sabao dome the marines fighting the people.Roronoa Zoro and Sanji are fighting in front of the eyes of the people,they hear the transponden snail than Franky calls them to tell them that the Navy are coming and find Luffy.In grove #46 where the pirates are,then the navy come to arrest the pirates with the pacifistas,Caribou take an order by fake Luffy for use the Navy as a shield but Caribou doesn't hear him and he take the gun and kill the Navy scout.When he did that the pirates fight the Navy,a Navy was going to kill Caribou with a sword but it sunk into him then he use his devil fruit ability to drank him and then he shoot him.A little wile PX5 and PX7 are come with Sentomaru,Lip Doughty tried to destroyd PX7 but he got defeted,the fake straw hat pirates have running away, but fake Luffy was not looking and he hit Sentomaru,fake Luffy was telling lies, about he is the son of Dragon and the grandson of Garp, and he was on the war of the best,and having 400.000.000 bounty,and Sentomaru didn't believe him because Luffy is not a scum like him.Then the pirates fooled and became his crew then PX5 is telling that he is Demalo Black a man with a bounty 26.000.000- berries that he was an impostor and they find out that they were doing the real straw hat pirates.Luffy was trying to find his crew but PX5 was take order by Sentomaru for kill the pirates and when he do it Luffy was going to be killed to and he jump on the wall and they all found that the real Luffy was there.the song we go starts because Luffy was using haki and he use gear second and he was destroyd PX5 with another haki and gomu gomu no jet pistol then he was running and he hear zoro's voice who was with sanji PX7 was trying to kill Roronoa Zoro and Sanji but they destroyd him toand they start running to the ship and Luffy saws Rayleigh and tell him that he will do it Luffy will become the pirate king,and the episode ends.

Anime and Manga Differences

 * Caribou first revealed his Devil Fruit powers against a Marine soldier, not against Drip (Fake Sanji) as he did in the manga.
 * In the manga, PX-7 was using his palm lasers against Zoro and Sanji before getting destroyed, but in this episode, he was using his mouth laser.
 * Fake Luffy announces that the one who kills the most Marines would be his right hand man. This was not mentioned in the manga.
 * In this episode Luffy used gear second mode throughout his whole body, while in the manga it was only his arm.
 * In the manga, PX-5 launched one laser beam from its hand at Luffy, while in the anime, it fired three laser beams from its mouth.