Three Inches of Humanity, Wipe Them All Out?

Somewhere underground in a certain country, Kabuto's External Brain quickly received some news.

"It was the Samsara of Heavenly Life Technique. All the ninjas and White Zetsu who died earlier have been revived..."

"Uchiha Riu couldn't possibly use that technique, and neither could Madara. That means it was Hashirama. Heh heh, worthy of the God of Shinobi—so loyal and righteous!"

"Still, if the lives of a hundred thousand ninjas can be traded for Uchiha Riu losing one of his top generals, that couldn't be better."

"I bet Uchiha Riu is running around like a headless fly right now, searching everywhere for the offshore island where the clones are hiding. But the outer seas are so vast—where could even he begin? The time he spends traveling alone will be enough for me to wipe out the Ninja Kingdom once more!"

"The Ninja Kingdom only has eight cities left now... I don't need to spread my forces out like last time. Still, Uchiha Riu seems to have taken precautions against the 'Heavenly Transfer Technique.' Was it called the 'Heaven-Severing Formula'? Who would have thought the Heavenly Transfer Technique had such a weakness?"

"Fine. If I can't teleport directly into the cities, then I'll send them to the mainland in batches. Let them fill their stomachs first, then slowly make their way over. I'll torment his Ninja Kingdom until it's half dead!"

"Mm... but expecting these clones to kill Uchiha Riu himself is unrealistic after all. That's what Six Paths-level power is, isn't it?"

"But for a long time now, he has seemed wary of Kaguya Ōtsutsuki's clansmen, those people from beyond the heavens. As long as he is left sleepless and restless, overwhelmed by the need to guard against my invasion, he won't be able to devote himself fully to the great