Upgraded Four Red Yang Formation

"What was that?"

Obito, standing atop a thick vine, noticed the fiery red glow. Just as confusion rose within him, the fiery red light had already spread above his head. Looking around, Obito finally realized that this entire area had been enclosed by a fiery red barrier.

"Four Red Yang Formation!"

Obito murmured, a disdainful smirk appearing on his face. "How ignorant. Do you really think a barrier like this can restrain me?"

Powerful ocular power erupted from Obito as he prepared to teleport himself out directly.

But in the next instant, his expression abruptly changed, revealing utter disbelief.

"How is this possible?!"

Obito cried out in shock.

"Nothing is impossible." At that moment, Naraku's voice sounded beside his ear. "Even space-time ninjutsu is not invincible."

Naraku stood before Obito, gazing at him with a faint smile. His scarlet eyes were filled with coldness.

Meanwhile, outside the barrier.

Four Shadow Clones stood at the four corners of the barrier. Massive amounts of chakra surged from their bodies and rapidly spread across the barrier.

Although the Four Red Yang Formation looked no different from before, a careful look would reveal an invisible layer of flowing air over the glass-like fiery red barrier.

It was precisely because of this layer of airflow that Obito's space-time ninjutsu had failed to activate.

At this moment, Naraku had to admit that the Second Hokage was truly a peerless genius.

This airflow had been developed by the Second Hokage. By using massive amounts of chakra to drive the currents of air, then compressing them into a sealed space, the Four Red Yang Formation—which originally could not block space-time ninjutsu—had been upgraded.

Although using Shadow Clones to maintain the upgraded Four Red Yang Formation consumed a great deal of Naraku's chakra, he felt it was worth it.