Izuna's Mangekyo

"You're as despicable as ever, Tobirama."

Hearing the voice, Tobirama Senju and Uchiha Sen instinctively looked in the direction of the sound.

Izuna had somehow appeared on the watchtower of the Uchiha's encampment in Mount Taihang. His right hand was still in a hand seal, a faint smile playing on his lips. His gaze was fixed on Tobirama Senju. "Attacking the enemy's presumed impossible invasion point, that's really your style."

From his memories, Tobirama Senju shouldn't have learned the Flying Thunder God Technique by this time.

But judging from the move he just displayed, there was no doubt he had mastered it.

And not only that, he had likely kept this trump card hidden, waiting for the perfect moment to use it in this operation.

Tobirama Senju clicked his tongue in annoyance and said coldly, "Likewise. You actually saw through my plan..."

Originally, Tobirama Senju had developed the Flying Thunder God Technique months ago, but he hadn't revealed it. He intended to use it as a secret weapon, waiting for an opportunity to strike at the Uchiha Clan's throat and deliver a fatal blow.

Mount Taihang had been an impenetrable barrier for the Uchiha Clan for centuries.

However, this had also led to the Uchiha Clan's overconfidence in the area. They had deployed too many forces to the front lines, leaving the defenses of Mount Taihang vulnerable.

An ordinary ninja, even a Kage-level one, would never be able to bypass so many people on the front lines and infiltrate Mount Taihang under the Uchiha Clan's watchful eyes.

But Tobirama Senju, with the Flying Thunder God Technique and his innate sensory abilities, could.

Furthermore, he was naturally an extremely powerful sensory ninja, surpassing even Hashirama Senju in this regard. He could sense the entire situation on a battlefield.

At his peak, he could even sense the exact number of enemy combatants on the opposing battlefield.

With his solo surprise attack, he had miraculously crushed this final defense line of the Uchiha Clan led by Uchiha Sen.

He was on the verge of capturing the area, and then, along with Senju Takeuma, Older Brother Hashirama Senju, and the Senju Clan's Vice Clan Head Tobirama Senju, they would launch a pincer attack.

If this had succeeded, the Uchiha Clan, even if not annihilated, would be severely weakened, losing their ability to contend with the Senju.

But unexpectedly, Izuna had suddenly appeared, catching him completely off guard.

Uchiha Sen was also shocked by Izuna's appearance and exclaimed, "Young Clan Head Izuna, weren't you at the front lines?"

"Uncle Sen, you retreat first and provide emergency treatment to any clan members who are still breathing."

Izuna said as he leaped down from the watchtower.

Uchiha Sen was of the same generation as Tajima Uchiha, which was why Izuna addressed him as such.

Wiping the blood flowing from his forehead, Uchiha Sen lifted two Uchiha Jonin who were still breathing beside him. "Be careful, that kid's jutsu is extremely strange."

Uchiha Sen's strength was originally on par with Tobirama Senju's, and his experience was even more seasoned.

But it could only be said that the Flying Thunder God Technique was truly a bug-level ninjutsu, capable of achieving kills beyond one's level.

"Although there was an unexpected development, so be it."

Tobirama Senju recovered from his shock, his poker face returning. He took out a new Flying Thunder God Kunai and said, "After I capture you, you can also become a bargaining chip for negotiations with the Uchiha."

The two had clashed many times, and Tobirama Senju was confident in Izuna's strength. He believed that with the Flying Thunder God Technique, he absolutely could not fail.

"Heh, you dare to say that."

Izuna responded coldly, the three tomoe in his eyes spinning rapidly, transforming into a new shape resembling the character "person" with three vertical strokes.

"A Sharingan I've never seen before?!"

Tobirama Senju was startled.

But it didn't make him flustered. He formed a hand seal, and in the next second, a tsunami-level Water Release jutsu, over twenty meters high, erupted from behind him.

Water Release: Water Colliding Wave!

The level of ninjas during the Sengoku period was far superior to later generations. The Genin of this era were almost stronger than the Chunin of Naruto's era.

"Fire Release: Majestic Fire Annihilation!"

Izuna brought his hands together, took a gentle breath, and unleashed a super Fire Release jutsu from his mouth with an area of attack no less than Tobirama Senju's Water Release.

WHOOSH!!

As the fire and water mingled, intense steam and shockwaves sent the tents of the surrounding Uchiha camp and the corpses of some clan members flying.

Unfortunately, the eyes of these clan members could still be salvaged. However, the eye transplantation techniques of this era seemed incomplete...

Izuna mused internally.

This practice was dark, but in the Sengoku period, it was commonplace.

Suddenly, Tobirama Senju's presence disappeared.

In less than a second, he reappeared about ten meters above Izuna.

The clash of their high-level ninjutsu had swept the Flying Thunder God Kunai that Tobirama Senju had previously placed around them into the air.

One of them was swept above Izuna's head, and Tobirama Senju seized the opportunity to teleport to Izuna's position above him.

"Got you!"

Tobirama shouted.

However, he didn't know that the moment he disappeared with the Flying Thunder God Technique, Izuna's left eye, the Mangekyo Sharingan beneath his bangs, was spinning wildly. A cinematic scene was being generated in his left eye—

In the vision, the opposing Tobirama Senju disappeared from his original spot with the Flying Thunder God Technique, then teleported above him, attacking the crown of his head with the hand-seal-less Water Release Ninjutsu, Heavenly Cry.

As expected, the scene retracted. Tobirama Senju, positioned above Izuna in the water, unleashed a torrent of water needles like a storm of falling pears, attacking Izuna from below.

"Water Release: Heavenly Cry!"

Izuna drew a scroll from the ninja pouch on his thigh and pressed his palm against it. Countless kunai and shuriken sprang out.

They were connected by threads nearly invisible to the naked eye.

In an instant, Izuna held the thin threads in his mouth and hands, violently flinging them upward toward the sky.

Swish! Swish! Swish!

The kunai and water needles collided, and after a fierce symphony, they dissipated into water droplets and scrap iron in mid-air.

"Uchiha Shurikenjutsu?"

Tobirama Senju's pupils constricted slightly, but what surprised him even more was that Izuna had completely seen through his attack trajectory.

How was this possible?!

He should be seeing his Flying Thunder God for the first time!