Chapter 649

Chapter 649 is called "Dance of Sea Breams and Flounders".

Cover Page
From the Decks of the World Vol. 32 - "Skypiea - God Is Pleased With This Year's Blessings As Well".

Short Summary
The human slaves have been freed and King Neptune decided to move the New Fishman Pirates to Fishman Island to do penal work under the watch of the army. The Straw Hats ran away from Gyoncorde Plaza and Jinbe postpones Luffy's invitation. An Ammo knight caught up to the Straw Hats and send them the invitation to the banquet that the king has organized, which Luffy accepts. The New Fishman Pirate officers have been sent into prison along with Vander Decken IX and Wadatsumi has been banished from Fishman Island. The Straw Hats arrive at the Ryugu Palace where they party, eat, sing, dance, drink and have fun. After a while Neptune leaves the party room and meets Robin, which asks him about Joy Boy and about the promise that he made. She then reaches the conclusion that Shirahoshi is the ancient weapon Poseidon.

Chapter Notes

 * Gan Fall, Pierre, and the Shandian Chief are seen for the first time after the timeskip.
 * Neptune allows the former human slaves to go free and sentences the non officer New Fishman Pirates to working sentences on Fishman Island.
 * All of the New Fishman Pirates officers and Vander Decken IX are locked in Ryugu Palace's prison tower. Wadatsumi, who is too big to fit in a prison cell, is banished from Fishman Island.
 * The Fishman District has been closed off.
 * Zoro shares a similar perspective on how to reward heroes just like Luffy. While Luffy wants meat, Zoro wants booze.
 * Jinbe says he cannot join the Straw Hats at the moment, stating he has some unfinished business he has to take care of first, but he promises that he will join up with them later if they invite him at that time. Luffy promises to invite him again while all of the Straw Hats express their desire for him to join.
 * A singer named Maria Napole is introduced.
 * Joy Boy was a person who lived during the Void Century and the poneglyph in the Sea Forest is an apology letter to the Mermaid Princess of that time.
 * Poseidon and the Mermaid Princess are revealed to be one and the same.

Trivia

 * The title is a Japanese phrase that refers to an extremely extravagant hospitality or feast. The phrase stems from the legend of Urashima Tarō who is rewarded with a visit to Ryugu Palace for rescuing a turtle. He is welcomed with a feast of very expensive and delicious fish such as bream and plaice.