The Ultimate Weapon Reborn

With his allies already beaten, Hōki carries out his last gambit by turning Gaara into the key to reviving Seimei, the weapon Takumi Village once called ultimate. He locks Gaara inside a metal sphere built to siphon his chakra, and as Gaara begins to slip partway into the form of the One-Tailed Shukaku, the spilling chakra powers Hōki's offering of his own body to bring Seimei back. Clad in the gathered arms of the Four Celestial Symbols Men as a ghostly suit of armor, the revived Seimei backs Naruto into a corner, and even Matsuri's effort to help does little to turn the tide.

Hōki traps Gaara in a chakra-draining metal sphere, forcing a partial transformation into Shukaku. The overflowing chakra fuels the resurrection of Seimei as Hōki sacrifices his body. Seimei rises wearing the weapons of the Four Celestial Symbols Men as spectral armor and pushes Naruto onto the defensive despite Matsuri's assistance.

The episode belongs to the anime-original Sunagakure Support Mission arc, which sends Konoha shinobi to aid the Sand. It airs under the opening Swaying and the ending Scenario. Seimei's resurrection is the arc's central threat, framing him as a weapon revived through the sacrifice of Hōki and the misuse of Gaara's power.