Time flew. Three years passed in the blink of an eye. Uchiha Yi had not gained access to many powerful opponents during that time, but his strength had still grown considerably.
In the Battle Space, he had faced every Jinchūriki except the Seven-Tails' host. That alone had made him stronger. Between the rapid growth a ninja could expect from twelve to fifteen, the Ninjutsu he had learned over those three years, and the rewards he had earned through the Battle Space, his strength had risen dramatically.
Yi had become a veritable Chakraton, with roughly two thousand units of Chakra by his estimate. Once he absorbed the Seven-Tails as well, his strength would rise again, putting him on Kaguya Ōtsutsuki's level.
And given Kaguya Ōtsutsuki's approach to combat, Yi would undoubtedly be stronger than her.
He had also grown to a little over six feet tall and become a striking young man.
Perhaps because Uchiha Mikoto picked out all his clothes and even cut his hair, Yi's hairstyle looked remarkably like Sasuke Uchiha's would in the future. His whole appearance was a close match, too.
One morning, Yi had just gotten out of bed when Kushina Uzumaki rushed to his house. "Yi, something's wrong! Grandma Mito is fading. Come quickly!"
"What?" Yi froze. Mito Uzumaki should have died of old age two years ago, but he had kept her alive with Yang Power. He had not expected the end to come now.
"Let's go!" Yi grabbed Kushina and used the Flying Thunder God Technique to bring them near Mito.
Tobirama Senju, Hashirama Senju, Nawaki, Tsunade, Hiruzen Sarutobi, and the others were already there.
Seeing Yi arrive with Kushina, Mito beckoned to him from her bed.
"Grandma Mito!" Yang Release Chakra welled up in Yi's hand. Using it cost him little. Ever