In the woods, Danzo's gaze had completely dimmed. Naruto glanced at him, the corner of his mouth curling into a faint smile.
Izanami had originally been a ninjutsu developed by the Uchiha Clan to restrain Izanagi. Its initial targets had been those clan members who became obsessed with repeatedly rewriting reality and recklessly using Izanagi.
But in Naruto's eyes, this thing was even more hellish than Tsukuyomi.
The feeling was like Sisyphus from Greek mythology, eternally pushing a boulder uphill yet never seeing the end. A person's soul would be dragged into the deepest part of their consciousness, where the pain and despair Naruto had personally arranged would replay over and over.
And it was more than an ordinary genjutsu.
The deeper effects of Izanami were somewhat similar to the dreams in Inception. The deeper one sank, the more time within would stretch—not by a little, but exponentially. Only a few minutes might pass in reality, while Danzo could have endured decades within his mental world.
Itachi Uchiha had left Yakushi Kabuto a way out back then. Once Kabuto truly came to his senses, Izanami would naturally be released. But Naruto was not so kind. He had not set an exit for Danzo at all.
Unless Danzo could break through this genjutsu through his own mental strength, he could only remain trapped in despair forever, suffering endlessly, in a state worse than death.
As for the time Urashiki Ōtsutsuki had once used to freeze Toneri, that could actually be regarded as a higher version of Izanami.
Using up a massive amount of Yin Release Chakra at once, overburdening the Sharingan, and ultimately going blind—such side effects were indeed fatal for an ordinary Uchiha. But Naruto now possessed the Rinnegan, so why would he need to worry about that? Forget blindness;