one piece, vol. 37: tom (one piece graphic novel) (english edition)  <p>as the true identities of the cp9 assassins are revealed, so is their real motive--to get their hands on the blueprints for the pluton, the most destructive weapon of the ancient world! with robin leaving the crew of her own free will, the cp9 won&apos;t let anything stand in the way of their mission... least of all the straw hats!</p>