Not only that.
"Hiruzen Sarutobi even used a forbidden technique to reclaim the position of Hokage!"
"He used a forbidden technique."
Jiraiya's expression darkened slightly.
"A forbidden technique?"
"That's right."
"Developed by the Second Hokage, Tobirama Senju, and classified as an S-rank forbidden technique... Impure World Reincarnation."
Jiraiya's face turned extremely grim.
"That forbidden technique that desecrates the dead!"
Impure World Reincarnation.
It was an evil ninjutsu that desecrated the dead and toyed with souls.
"To ensure he could kill me without fail, he resurrected five dead people to join the siege against me."
"The First Hokage, Hashirama Senju."
"And the Second Hokage, Tobirama Senju."
"As well as Shimura Danzō, Kagami Uchiha, and Konoha's White Fang!"
It was sheer madness.
Only after a long while did Jiraiya ask again.
"So..."
"That was why you... killed him?"
Uchiha Yao let out a soft laugh.
"Whether he used Impure World Reincarnation had nothing to do with why I killed him."
"I killed him because he had already become a tumor on Konoha's body, one that had to be cut out."
"He craved power, clung stubbornly to the old ways, and, to preserve his pathetic rule, did not hesitate to drag the entire village into the abyss."
"A Hokage like that remaining in place would only be Konoha's greatest harm."
"How could that be!"
Jiraiya retorted.
"The old man... he devoted his whole life to Konoha!"
"How could he be a tumor!"
"Is that so?"
Uchiha Yao shot back.
"If he was truly as great as you claim, then tell me, Jiraiya..."
"Why haven't you returned to Konoha for years?"
"And Tsunade—why hasn't she returned either, choosing instead to drown herself in gambling?"
"You three Sannin have all left the village, haven't you?"
That was true.
Why?
The Third Hokage had indeed once