The drug Nagato used was based on Konoha's Ration Pills. It was many times more potent, but its side effects were also many times worse. Anyone who took it was practically guaranteed to die.
However, the drug could temporarily restore Nagato's body to its peak, allowing him to fight with his true body and fully unleash the power of the Rinnegan.
Feeling power surging through his body, Nagato closed his eyes. This was the state he had always loved. It had been so long since he'd used his own body to move and fight that he deeply missed the feeling.
Nagato opened his eyes, revealing his Rinnegan to Jiraiya and the others.
"So you're the one behind everything."
Jiraiya looked at Nagato as he spoke. At last, he understood it all.
This was something Jiraiya had never imagined. The Akatsuki Organization was being led by Nagato, and the powerful Pain was a puppet controlled by him.
"Why did you become like this? And why did you use Yahiko's body to make a puppet?" Jiraiya asked Nagato. Toying with the body of someone close to you was a grave act of disrespect. The Nagato he remembered would never have done such a thing. The way Nagato had changed was beyond anything he could have imagined.
Hearing Jiraiya's words, Nagato lowered his head and looked at Yahiko on the ground—the Deva Path Pain among the Six Paths of Pain.
"Yahiko, you wanted me to do this, didn't you?" Nagato murmured, so quietly that only he could hear. He knew this was wrong, but he wanted Yahiko to lead the Akatsuki Organization again, even if Yahiko had no consciousness of his own now.
Nagato didn't answer Jiraiya. He would soon kill all four of them, and he had nothing to say to enemies