After sensing Black Zetsu's Chakra disappear, Naruto revealed a meaningful smile. He then controlled the Majestic Attire: Susanoo and increased the frequency of its attacks.
Meanwhile, the Shadow Clones locked in battle with Tobirama Senju and the Third Hokage also stopped holding back and began fighting at full strength.
Under the effects of Time-Space Reversal, Tobirama Senju's Flying Thunder God Slash could barely be of any use. After evading the Flying Thunder God Slash, Naruto appeared behind Tobirama Senju, and a Black Receiver pierced straight through his body.
Dealing with the Third Hokage was even simpler. All it took was a large number of Sealing Jutsu to seal this aged Hokage.
After all, the Third Hokage was a well-rounded Kage-level fighter, yet Impure World Reincarnation had instead weakened him. Naruto's own abilities were even more well-rounded and flawless than the Third Hokage's.
Restricted to the ground and unable to move, the Second Hokage and Third Hokage could only twist their heads and watch Naruto's battle with the First Hokage.
Realistically speaking, they wanted Naruto to win the battle. Yet deep down, they did not want the First Hokage, whom they regarded as a legend, to be defeated. After all, he was the God of Shinobi in their hearts, the shinobi who had ended the age of chaos.
Yes, compared to the First Hokage's power that had intimidated all nations, it was his achievement of ending the age of chaos and establishing the one-country, one-village system that made countless shinobi of the Ninja World willingly revere him as the God of Shinobi.
During that war-torn Warring States period, shinobi had to begin fighting from the age of three or four.
At first, they fought for money and resources, but later it developed into hereditary feuds between clans and became a convention.