合図は砲撃と共に！ 動き出したCP9 ( Aizu wa hōgeki to tomo ni! Ugokidashita CP9 ) August 21, 2005 Story Arc Water 7 Arc Manga Chapter Corresponds to Volume 36, Chapter 342

In of One Piece , titled " The Signal is the Boom of a Cannon! CP9 Starts to Move ," the tension in Water 7 reaches a breaking point as the secret government organization CP9 initiates its primary mission. Key Plot Developments

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Nico Robin is seen working alongside the masked agents, much to the shock and confusion of the Straw Hat crew.

Disguised members of CP9, including agents in animal masks (bear and bull), infiltrate the Galley-La Company headquarters.

Luffy attempts to intervene but ends up physically stuck between two buildings, a recurring gag that delays his entry into the main conflict.