Chapter 664

Chapter 664 is called "Master Caesar Clown".

Cover Page
Color Spread: Luffy, Zoro, Sanji, Usopp, Chopper, Franky and Brook are riding the Mini Merry II whilst wearing mafia clothing and firing their weapons in a paddle-by shooting.

Short Summary
While Smoker, Tashigi, and the G-5 Marines try to determine the reason for the children's presence on the island, the Straw Hats examine Brownbeard and learn more about the history of Punk Hazard. Caesar Clown then uses one of the defeated centaurs as a test subject.

Chapter Notes

 * The name of the samurai from Wano is revealed to be Kinemon.
 * Someone named Joker gives Caesar Clown permission to kill the Straw Hats, Kinemon and the G-5 Marines, Caesar says Joker will make it look like an accident in the seas.
 * Usopp makes special buttons/masks for Nami, Sanji, Chopper and Franky to more easily discern which person is in what body.
 * The outcome of Brownbeard and Basil Hawkins' battle two years ago is revealed.
 * Brownbeard explains how Punk Hazard became a wasteland.
 * What was thought to be one of Dr. Vegapunk's failed experiments that turned Punk Hazard into a poisonous wasteland, is revealed to have been developed by Caesar, and that he intentionally set it off.
 * According to Brownbeard, the centaurs, satyrs, and the harpy are revealed to have originally been humans who were altered by Law's ability after losing the use of their legs.
 * Caesar Clown is a Logia Devil Fruit user, who ate the Gasu Gasu no Mi and has a current bounty of 300,000,000.