Chapter 401

Cover
A Color Spread of the Straw Hat Pirates in a prehistoric setting being chased by an enormous mammoth.

Quick Summary
A few Strawhats begin to fight with one CP9 each.

Long Summary
The chapter starts with Luffy arriving in the room where Robin and Franky were being held. He realizes that they must have been there but are gone now. He then calls out for Robin. He then gets angry at Lucci, but remembers they are headed to the Gates of Justice and runs off to find them.

Zoro is talking with Kaku, telling him to hand over his key before he gets killed. Kaku says that was a silly order, and tells Zoro he regrets being unable to see his real skill when they were in the Galley-La mansion, and his surprise that the pirates were able to make it so far. Zoro tells Kaku that he is several times stronger than when they last fought. Kaku believes him, saying he senses an ominous, beastly spirit within Zoro, and that he is a scary man. He stands up and goes on to say that his swordsmanship is the best in CP9. Zoro comments that he uses a nitoryu fighting style. Kaku uses his swords like crutches to lift himself off the ground and launch a rankyaku attack on Zoro, which the swordsman redirects to either side of him. The waves destroy the shelves behind and on either side of Zoro. Kaku then contradicts Zoro by saying he is a Yontoryu user, his legs being the other two swords. Zoro tells him it is no problem, as he remembers Kaku's entire body is a weapon. Zoro then runs at Kaku and Kaku moves forward, intercepting the attack. The two then begin to match each other blow for blow. Zoro and Kaku use 72 pound cannon and Rankyaku: Hakurai and the attacks collide in mid air, causing an explosion. Using the blast as a distraction, Kaku charges at Zoro using Soru. Zoro plants his sword, blocking Kaku's attack. Kaku then lets himself be repeled away by Zoro, moving across the room spinning but uninjured, staying on his feet. Zoro then charges at him, which Kaku dodges at the last second by falling on his back. Before hitting the floor, Kaku catches himself and turns his body around to land in a kneeling position. Kaku laughs and says the battle is fun. Zoro responds by saying he has no time for games.

Plot Points
Jyabura ate the Inu Inu no Mi, Model: Wolf.

Kaku ate a Devil Fruit that turns him into a giraffe.

Returning Characters

 * Straw Hat Pirates
 * Monkey D. Luffy
 * Roronoa Zoro
 * Usopp as Sogeking
 * CP9
 * Rob Lucci (flashback)
 * Kaku
 * Jyabura
 * Hattori (flashback)

Attacks

 * Kaku
 * Rankyaku (Storm Leg)
 * Soru (Shave)
 * Geppou (Moon Step) (unnamed)
 * Rankyaku "Hakurai" (Storm Leg: "White Lightning")
 * Rankyaku "Ran" (Storm Leg: "Confusion")
 * Zoro
 * Nana-Ju-Ni Pound Ho (72 Pound Phoenix/Cannon) (first time)