Chapter 754: The Impact of Fujin's Existence!
Before the God of Death could extract Hiruzen's entire soul, a blade of wind appeared out of thin air and sliced through Hiruzen's soul! For the very first time, the smile on the face of the God of Death disappeared! His eyes widened as around 20% of Hiruzen's soul returned to his body.
He immediately extended his arm towards Hiruzen's body, but before he could reach his body, the God of Death began disappearing! The Reaper Death Seal jutsu had ended. Hiruzen fell to the ground with a smile on his face!
Shock appeared on Jiraiya's face as he wondered, 'What in the world was that? Could only a part of the soul be used as a sacrifice for this jutsu? Regardless, this is good news. The only question is, can Sensei live with so little of his soul remaining?'
However, there was one person even more shocked than Jiraiya. And, that person was none other than Fujin. He looked at Hiruzen with a stunned expression and exclaimed internally, 'What the hell??? That's my fucking Wind Domain!!! When did this old fox copy it?'
The Wind blade that sliced Hiruzen's soul wasn't from Fujin or any other ninja. It was used by none other than Hiruzen!
After Minato's death, Hiruzen had studied the Reaper Death Seal in great detail! He reached such a stage that no other ninja in history, including the Uzumaki ninja who created this seal, knew as much about it as Hiruzen did. It was during this study, Hiruzen realized that once the enemy's soul had been sealed, there was a chance that the caster could continue living by cutting his own soul and deactivating the jutsu.
However, there were several issues. The very first was that the God of Death's blade couldn't be used for that purpose. And, normal attacks couldn't cut through the soul perfectly and could end up destroying the soul entirely.
Hence, Hiruzen worked on creating a jutsu that could cut through the soul perfectly. It wasn't very difficult to do due to his expertise in manipulating Yin chakra. He created a jutsu that looked very similar to the Blade of Wind but had very little Wind chakra and far more Yin chakra which was the most effective against souls.
That led him to the second issue, which was to time the jutsu to cut through his soul at the perfect time. In order for this to work, he would need to wait until the God of Death sealed the soul of his enemy and only then cut his soul.