Naruto looked at the Third Hokage, speechless. "Honestly, old man, you're pushing eighty and you're still this curious? Seriously. Fine, there's no harm in telling you. That thing on your chest is crystallized power from a God Tree. Danzo's is the same. I found another God Tree. It couldn't compare to Kaguya's, but it was still a God Tree. To break through, Sasuke and I each absorbed half its power. There was some excess chakra left over, so I sealed it with Sealing Jutsu. That's the God Tree Mark on your body."
The Third Hokage said in surprise, "Naruto, are you saying you found another God Tree, and you and Sasuke absorbed its power?"
Naruto nodded. "That's right. The God Tree's power has no inherent nature, but it can change into any nature. Sasuke and I needed a huge amount of power to break through, so the God Tree was obviously our best choice. We absorbed it. Hehe, it's thanks to that God Tree that we managed to break through so quickly. As for your mark, that's the last of its remaining power. It can give you a huge amount of chakra and make you younger. It's a little like Granny Tsunade's Creation Rebirth, only more effective. You can control it, too. Give it a try and you'll see."
The Third Hokage nodded and tried controlling the power of the mark on his body. He found that it worked exactly as Naruto had said. He tried withdrawing the powerful vitality coursing through him, and his appearance changed from that of a man around forty back to one in his seventies or eighties. When he released that power again, he immediately looked around forty once more.
Aside from that, the Third Hokage also discovered that if he used this power to