Four Symbols Seal

If a spirit body could be summoned into the Pure Land, could it be called back from there to fight again?

According to the Spirit Transformation Technique, the body and spirit body remained connected. But it did not explain why. To understand how that connection worked, Fugaku would need more experiments.

Fugaku had finished reading the notes. He could imagine what the Second Hokage had gone on to do: identify genetic material that carried a person's traits, then use it to pull the dead person's spirit body back from the Pure Land to fight.

But the technique was too complex. Even Orochimaru had built on the Second Hokage's work and spent more than a decade researching it. Only when Kabuto Yakushi perfected it had its true power emerged.

In the end, the technique had not been used against the Uchiha. It had shone in battle against the Shinobi World's Allied Forces instead. Fugaku could only marvel: the Second Hokage's idea had been sound, but the Shinobi World had changed too quickly.

Even the Second Hokage himself had eventually been summoned to join the fight.

Fugaku returned the notes to their place and walked to the table holding the Scroll of Seals. He examined the Warning Formula carefully. Complex as it was, it still fell within the bounds of Sealing Jutsu.

When it came to Sealing Jutsu, the Land of Whirlpools had been the strongest in the Shinobi World. Konoha and the Land of Whirlpools had been close for generations, and Konoha had adopted many of its sealing techniques. Foremost among them was the Four Symbols Seal.

The Four Symbols Seal was an advanced sealing technique. Once applied, it cycled endlessly among the four symbols, leaving no opening to exploit.

Many famous sealing techniques in the Shinobi World had grown out