He knew the hand seals to release the Impure World Reincarnation Jutsu?
If that was true, then there really was no problem.
But...
Where had Minato Namikaze learned the hand seals for the Impure World Reincarnation Jutsu?!
Clearly, Minato Namikaze also knew what everyone was wondering, so he explained, "When I was learning the Flying Thunder God Technique back then, I read about the Impure World Reincarnation Jutsu, so naturally, I know how to release this forbidden technique."
Right, when Minato Namikaze was learning the Flying Thunder God Technique, he could indeed have read about the Impure World Reincarnation Jutsu.
"That doesn't sound right..." Jiraiya frowned, somewhat doubtful. "Didn't the old man forbid anyone else from learning this forbidden technique after Orochimaru secretly learned the Impure World Reincarnation Jutsu?"
"Besides, the Flying Thunder God Technique and the Impure World Reincarnation Jutsu were stored separately long ago. How could you read it without the formula to undo the seal?"
Minato Namikaze smiled sheepishly. "That happened later. Besides, I did become the Fourth Hokage, didn't I?"
Jiraiya understood at once, his expression saying, "So you weren't playing by the rules either."
Shihōin Naraku and Tsunade beside him understood as well. Only Kakashi still had a rather incomplete grasp of it.
Between Tsunade and Naraku, one had been Hokage, and the other currently was Hokage.
As for Jiraiya, although he was not Hokage, given his seniority, many matters in Konoha were no secret to him.
That was why those three reacted the fastest and immediately understood what Minato Namikaze meant.
Seeing that Kakashi still looked a little confused, Naraku offered an explanation. "In Konoha, the current Hokage has a great deal of authority!"
The implication behind those words could not have been clearer.
Yes, Hiruzen Sarutobi could indeed have declared the Impure World