Leaf Dragon thought through the logic from beginning to end and found nothing wrong with it. Everything seemed to make sense. The only problem was that his deductions did not match reality at all...
Black Zetsu had operated here for a while and had secretly duped Hanzo of the Salamander back when the Lands of Wind and Earth had borrowed passage through the country.
However, Hanzo of the Salamander soon realized he had been played. He flew into a rage, severed ties with Black Zetsu, and killed most of the men Black Zetsu had brought with him.
Black Zetsu was furious too and planned to retaliate. But afterward, he found the more obedient Jashin Cult, and with Yin taking him in and raising him, he never found the time to strike at the Land of Rain again. So there really were no forces belonging to Black Zetsu within the Land of Rain now.
Still, under his influence, Hanzo of the Salamander had learned a great deal and made quite a few changes.
Controlling public opinion, for instance, along with the [Goodness Cult], which eased public discontent within the country, and some rather inhumane experiments.
Jiraiya rubbed his chin and gave a wry smile under Nagato's disappointed gaze. "I'm really sorry, Nagato. I can't even remember my own name..."
Nagato slumped back down, dejection creeping into his voice. "It's okay, Big Guy. Take your time... Honestly, it's been so long that I've almost forgotten what my parents looked like..."
"Could you tell me about you and your parents?" Jiraiya asked hesitantly, trying to uncover traces of Black Zetsu.
By all rights, the entire Uzumaki Clan should have relocated during the founding of Konoha. It was unlikely that any of their bloodline remained in the Land of Rain.
"There's really not much