Once known as Okajima Rokuro, but now going by the moniker 'Rock', this Japanese businessman endured the typical mistreatment of his trade. His life took a dramatic turn when, during a routine business trip, he was kidnapped and ransomed by the Lagoon Company; a band of mercenary pirates operating within the anarchic metropolis of Roanapur. Left for dead by his former employers, he became a member of the very group that once held him captive. Negotiating the treacherous political landscape of the criminal underworld has now become his livelihood, all while avoiding the wrath of his trigger-happy co-worker, 'Two Hand' Revy.