Itachi’s reference is the Akatsuki Clan from the Naruto manga series Naruto (ナルト) is a Japanese manga series written and illustrated by Masashi Kishimoto. It tells the story of Naruto Uzumaki, a young ninja who seeks recognition from his peers and dreams of becoming the Hokage, the leader of his village. Akatsuki (暁, literally meaning: "Dawn" or "Daybreak") was a group of shinobi that existed outside the usual system of hidden villages. Over the course of several decades, Akatsuki took different forms and was led by different individuals. Though each iteration is viewed as either subversives or criminals, all seek to make the world a better place through their own means. Each Akatsuki tended to have multiple lairs across the world, inaccessible either due to their remoteness of the various security measures that protected them. The organization's initial goal — under Yahiko's leadership — was aimed at bringing peace to Amegakure and the world on a larger scale, this would later be distorted by the influence of others. Although some of the post-Yahiko members joined Akatsuki to further their own goals, all are united in Akatsuki's ultimate goal of gaining world domination. Nagato has mentioned a three-step process to work their way towards this goal. First, they plan to obtain a large amount of money to support their organization. Second, they plan to set up a mercenary group loyal only to Akatsuki. To build their reputation, they plan to accept any mission below the usual cost and operate off of the excess funds earned in the first part of their plan. Because there haven't been any wars in some time, many of the more powerful and well-known shinobi villages couldn't afford to accomplish such missions at such low prices, leading the smaller countries to hire Akatsuki over the more expensive shinobi villages. By using the tailed beasts, Akatsuki would start wars and then immediately quell them, solidifying their reputation and convincing every country to depend on them, thus cornering the market in shinobi labor. Without any business, the other shinobi villages would collapse due to the lack of funds. Finally, after Akatsuki is the only major force of shinobi in existence, they can easily conquer the other countries. Members do not automatically learn of the plan upon joining; Hidan didn't find out about it until he had been a member for quite some time.