Impure World Reincarnation Allied Forces

The Impure World Reincarnation Allied Forces were an army of reanimated shinobi assembled from numerous lands and thrown into the war on Akatsuki's side. Their objective centered on freeing the far stronger reincarnated fighters that the Allied Shinobi Forces had already beaten and sealed. Most had been rebuilt from genetic material Kabuto gathered while he served Orochimaru, harvested specifically to trial the Summoning: Impure World Reincarnation, with a portion taken only after he absorbed Orochimaru's remains into his own body.

Once his elite revived warriors began to fall, Kabuto flooded the battlefield with these weaker reanimations in a bid to release them. Their sheer number unnerved the Allies at first, yet their limited strength quickly showed, and many were put down and sealed in short order. Because their minds stayed intact, they bickered over how to carry out their orders and even reunited with living Allied soldiers they had once known, explaining their grim purpose.

When recovering Toroi proved impossible, a detachment under Torune Aburame split off, its movements screened by Heiji until he too was sealed. Pressing toward the entombed Third Raikage, the group traded regrets along the way. Traps thinned their ranks: one member was snared and sealed, prompting Daimaru to clear the rest with his Earth Release: Sand Dance, while Chūkaku's attempt at a Sealing Release Technique was cut short by the arrival of Temari's squad. Daimaru, who had never been cowed by Temari's status as the Fourth Kazekage's daughter and Gaara's sister, confessed his feelings for her before being sealed, leaving Torune as the last standing.

Torune Aburame led the breakaway detachment and outlasted the rest. Kabuto, who had once dismissed him as weak, was impressed enough to set him preparing a forbidden Aburame technique, the Jar of Poison Technique. Word of his return reached Shino Aburame, who sought him out; the two reminisced, and Torune even coached his relative on how to bring him down. Their clash, joined by a clone of Naruto, ended when Shino revealed insects bred to resist the rinkaichū venom, accelerated their growth using Torune's own jutsu, and sealed him. Others in the force included Daimaru, Chūkaku, and Heiji, and once the reincarnation jutsu was undone, every soul among them returned to the afterlife.