Immediately following the events of the Chūnin Exams, Arthur gains deeper insight into the other six who came to this world with him. He manages to escape with the various techniques he’s acquired and decides it’s finally time to leave the Leaf Village. Jada witnesses him commit a terrible act and becomes upset at his brutality. Despite her disappointment, he remains unchanging, which only heightens her emotional resentment toward his proclamations—triggering the “Uchiha Curse.”
This, however, does not stop him from venturing out further into the world.
Only when he gains enough power, wealth, and influence does he begin creating various projects that will span months to finish. To bide time, he travels to different countries and seeks to collect various weapons deemed quite valuable to many.
Meanwhile, the other six have their own objectives. But once Arthur discovers their plans, he decides that it’s better to thwart them by first eliminating the true main characters.