Image heavy
Ch. 438:
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Pein starting Chibaku Tensei (While Tendo Pein lacks Yahiko's conscious, he's still physically Yahiko which is why consider them the same).
Ch. 446:
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As Yahiko dies. he tells Nagato he knows Nagato can the revolutionary to
ch. 447:
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Nagato essentially has now succumbed to the Dark Side.
Ch. 449:
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Though Nagato was responsible for many people's deaths, his redemption is in using Rinne Tensei.
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As Nagato dies from chakra exhaustion and using Rinne Tensei, he smiles.
Ch. 629:
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Likely the closest thing that Naruto will have to getting the Rinnegan (though I hope he still does get those eyes). With the Shinju screaming, it's arguable that he was also screaming in nervousness/fear.
Ch. 656:
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For Obito's high intelligence, I'd say he's dumb/ignorant/slow on realizing why Nagato betrayed him. I put this because I love any appearance of Nagato has had since Edo Nagato was sealed by the Totsuka Blade.
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To me, any Jiraiya appearance since his death is good.
Ch. 673:
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Lumberjack Naruto
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At the end of ch. 673, Naruto is even more like Hagoromo