Never mind the headache-inducing Hiruzen Sarutobi. Meanwhile, after obtaining Hashirama Senju, Ōtsutsuki Sari returned to the space inside the moon and awakened Hashirama's Impure World Reincarnation.
"Is this the Pure Land?"
Stepping out of the coffin, Hashirama Senju looked around. His memories still ended at the moment of his death.
"This state... Tobirama's Impure World Reincarnation? He really didn't destroy that Forbidden Jutsu?"
He quickly noticed something was wrong and looked down at his cracked palms. Hashirama realized this must be the Impure World Reincarnation his younger brother had researched all those years ago.
It was a contingency plan Tobirama had made after discovering that Madara might still be alive, meant to bring Hashirama back to life to fight Madara.
But this Forbidden Jutsu violated the natural order of life and death. As a dead man, he shouldn't disturb the world of the living.
Besides, he had great faith in the younger generation of the village. Even if Madara were still alive and attacked Konoha again, the next generation would defeat him.
"First Hokage, my name is Ōtsutsuki Sari. I want to fight you and see your Wood Release and Senjutsu."
Ōtsutsuki Sari spoke up. He wasn't after only Hashirama Senju's Wood Release Chakra, but also the Senjutsu he possessed.
According to ancient records, their ancestor and the Sage of Six Paths had both possessed Senjutsu. Unfortunately, their ancestor had left behind no method for cultivating it, so Sari could only look for a way to obtain it from the Ninja World.
After investigating the Ninja World's intelligence, he had discovered that the First Hokage possessed the most powerful Senjutsu. He had to get his hands on that power.
"Are your eyes a kind of Dojutsu, too? They're different from Madara's Sharingan."
Only then did Hashirama notice the other person