"Great Ball Rasengan!"
The Three-Yang Seal opened, pouring all the chakra within into the Rasengan. Each of them fused their three Rasengan together, forming a Great Ball Rasengan over three meters in diameter.
Although this kind of Rasengan did not increase in power, its attack range was much greater.
Moreover, because it was a hand-seal-free technique that maintained its form, the fusion was extremely fast, taking no more than a second from start to finish.
The two enormous Great Ball Rasengan blocked the front like shields, intercepting and tearing apart the spiraling pillar of flames.
Furthermore, the fusion of a portion of Wind Release nature transformation gave the Great Ball Rasengan an incredibly powerful suction force. They clung to the spiraling pillar of flames, preventing it from changing direction and circling around to attack.
In the end, Uchiha Baru could only detonate the spiraling pillar of flames helplessly. However, that merely reduced the Great Ball Rasengan by half. It did not break them, much less injure the two women behind them.
After blocking the enemy's ninjutsu attack, Kushina and the other woman controlled the Adamantine Sealing Chains to push the Great Ball Rasengan toward Uchiha Baru.
Seeing the two enormous Rasengan pressing in from both sides, Uchiha Baru was startled and hurriedly leaped backward.
"A sustained technique with a slight Wind Release nature transformation added to it."
After retreating fifty meters, Uchiha Baru watched the rapidly recovering Great Ball Rasengan, his heart sinking. He hated opponents with such enormous chakra reserves.
"I can only use that power!"
After considering it for a while, Uchiha Baru realized that, among his current methods, only that move could forcibly break through their strength.
Using that power would be painful, but he had no other choice if he wanted victory.
He could not lose