A strange sensation came over Nagato. Perhaps because his right eye possessed the Rinnegan, Naruto's reincarnation technique took effect on him extremely slowly.
The wound on his leg was gradually disappearing. Nagato felt his body, which had remained frail even after surgery, slowly returning to normal.
The voice that came from Nagato's mouth when he spoke shocked him. It was the voice he had had as a teenager!
"Hello, little brother Nagato~!" Naruto grinned mischievously and took out a mirror for Nagato to look into. Seeing his thirteen-year-old self in the mirror, Nagato's mouth fell open in shock as he looked up at Naruto.
"Is this the new ability your Three-Tomoe Rinnegan has gained? What did you do to me?"
"I merely turned your age back to thirteen. Your strength shouldn't have declined much, and with a body like this, you'll be able to develop the Akatsuki much better, right?" With Nagato's original physical condition, he would be panting after using just two jutsu. Even with the Rinnegan, it had not been very useful. Tsunade's superb surgery had pulled him back from the brink of death, but it could not restore the vitality he had lost. On top of that, much of his necrotic internal organs had been removed, leaving him even weaker. It was basically impossible for him to recover the physical condition of a normal ninja.
"I'm a little unused to this body. Can you make me a bit older?" Nagato examined his thirteen-year-old body. His loose clothes exposed his rounded shoulders. His strength had not been affected much, but at his current mental age, it was difficult for him to accept such a young body.
"This tiny body doesn't have any leader's presence at all! I'm the Akatsuki's leader!"
"Boss, you look pretty good like this." Naruto