The Night Owl Guard's Astonishment

But the boy's Heavenly Punishment of Furious Thunder, which he unleashed with all his might, had already transcended the constraints of conventional Ninjutsu; it was a forbidden Forbidden Technique Semi-Complete Susanoo!

The pale white sea of lightning crashed down with a devastating force, unleashing pure destruction and brutality without any fancy attacks.

The incredibly tough vine barrier was instantly vaporized, burned, and shattered the moment it touched the lightning, failing to provide even the slightest barrier.

The massive, imposing rock shield shattered and crumbled in the next second, the rubble and debris being crushed into dust by the lightning.

Finally, the dark gold Susanoo's bone barrier, which stood at the front, cracked wildly under the continuous onslaught of lightning. Its Chakra shield dissipated rapidly, and its towering body trembled violently.

The triple-layered top-level defense was as thin as paper before Sasuke's all-out forbidden Forbidden Technique, crumbling at the slightest touch!

The raging sea of lightning completely engulfed Susanoo, its clones, and the entire Training Ground. Only blinding lightning and deafening thunder remained in the world, with nothing else in sight.

At this moment, the entire Origin Island was in complete uproar.

Uchiha clansmen who were training, on duty, or working all over the island subconsciously looked up towards the back mountain where the Training Ground was located. Everyone's eyes were fixed on the vast, pale sea of lightning that stretched to the sky, their eyes filled with extreme shock and disbelief.

"What is that?! Such immense lightning power!" "It's coming from the direction of the Training Ground on the back mountain! Could it be that Lord Natsu Yin is personally testing it?" "This terrifying lightning pressure is practically a world-destroying level Ninjutsu! As expected of a technique developed by Lord Natsu, it's too frightening!"

Countless clansmen gasped in astonishment and discussed among themselves, all subconsciously attributing this terrifying power to Natsu, the clan's only top expert.

After all, apart from Natsu himself, no one in the clan believed that anyone else could activate such a terrifying and unsolvable forbidden lightning technique.

Heavenly Awakening Hall, located at the very heart of the clan's territory and holding the highest position, the Night Owl Guard, standing in full armor and on strict guard, were the first to sense this familiar yet violent aura of Lightning Release. The hundred-man guards instantly turned their heads, their gazes piercing through the mountain forest to look at the towering sea of lightning behind the mountain, and everyone's expression was moved.

A young Night Owl Guard member couldn't help but exclaim in a low voice, his tone filled with shock. "This Lightning Release aura... it's Lightning Release: Heavenly Punishment of Furious Thunder!"

Absolutely! Isn't this the top-tier Forbidden Technique that Lord Natsu Yin just developed two months ago?

"Killing Hall, didn't you already master this move? Did Lord Natsu personally practice it in the back mountain?"

As soon as he finished speaking, the eyes of hundreds of Night Owl Guard around them instantly focused on a young man in black with a cold demeanor and upright posture at the front of the group.

This person is none other than Uchiha Shadian, one of the few elite members of the clan who has mastered the Heavenly Punishment of Furious Thunder. He is also a core high-level combatant of the Night Owl Guard. His talent and strength far surpass those of his peers. He is known for his calm and taciturn nature and his sharp insight.

Killing Hall's brows furrowed tightly, his deep eyes fixed on the vast, churning sea of lightning behind the mountain. Sensing the intensity and spread of the lightning energy floating in the air, his expression grew increasingly solemn. He slowly shook his head and spoke, his tone unwavering. "It's not Lord Natsu."

"If Natsu Yin were to personally activate the Heavenly Punishment of Furious Thunder, the area covered by the sea of lightning would not be limited to just a valley behind the mountain; its power, oppressive force, and destructive force would be many times greater than it is now."

His voice was steady and powerful, carrying the absolute authority of someone who had experienced it firsthand.

When Natsu researching and testing this Forbidden Technique, he happened to be there to observe and witnessed the earth-shattering scene: a desolate island the size of a third of the Origin Island.

Under Natsu's full-force unleashing of the Heavenly Punishment of Furious Thunder, it was completely crushed, vaporized, and sunk in less than ten minutes.

It transformed into a desolate wasteland on a vast ocean, its terrifying power capable of overturning heaven and earth far surpassing the thunderous sea before our eyes.

Upon hearing this, all the Night Owl Guard members around were instantly shocked, their hearts filled with turbulent waves, and they all whispered in disbelief.

"If it's not Lord Natsu, then who could it be?"

"Throughout the Uchiha Clan, only a handful of people can master this Forbidden Technique! Including Lord Natsu, there are only four at most!"

"Killing Hall and Lord Yu are both on duty here and haven't made a move. The remaining senior has already followed Lords Yaoyu and Yakumi to the New World to support Lord Yashiro Chunwu in dealing with the chaotic situation between Blackbeard and the Flying Pirates. He's not on the island at all!"

"Since all four are gone, who exactly activated this earth-shattering lightning punishment?!"

A chorus of surprised and bewildered murmurs rose and fell among the guards, their faces filled with confusion and shock.

This Forbidden Technique has an extremely high threshold for cultivation, consumes terrifying amounts of Chakra, and is incredibly difficult to control. Even the most senior elites in the clan struggle to master it after months of arduous training. Yet now, a fifth user has appeared out of nowhere, completely overturning everyone's understanding.

Just as everyone was in an uproar, Uchiha Yu, who had been standing silently to the side with a gentle and reserved demeanor, slowly spoke. He calmly looked at the sea of lightning behind the mountain, his tone carrying an unbelievable certainty. "Don't forget, everyone, apart from Lord Natsu and Lord Izumi, almost no one can set foot in the exclusive Training Ground behind the mountain."

"Lord Izumi specializes in Fire Release and Water Release Ninjutsu, but his Lightning Release skills are mediocre. It's absolutely impossible for him to unleash such a pure, violent, and incredibly powerful Heavenly Punishment of Furious Thunder. Apart from those two, there's only one other person left on the entire Origin Island who has been receiving special training at that Training Ground for a long time."

The moment those words were spoken, the entire room fell into a deathly silence.

Uchiha Shadian's pupils narrowed slightly, his brows furrowing even more deeply. He murmured the name softly, his voice filled with disbelief. "You mean... young master Sasuke?"

"But he's only thirteen years old."

At the age of thirteen, in the clan, he was just a child who had just awakened his Sharingan and learned basic Ninjutsu. Even if he was exceptionally talented and made rapid progress, it was impossible for him to touch the forbidden lightning technique that only the clan's top experts could master, let alone fully unleash Natsu's unique ultimate forbidden Forbidden Technique.

A Night Owl Guard squad leader stepped forward, his expression solemn, and slowly broke the silence with a tone full of emotion and awe. "Unbelievable, but this is the only possibility."

Don't forget, he is the only disciple personally taught and nurtured by Lord Natsu with all his heart and soul. Lord Natsu's teachings, resources, and expectations have always been exclusively for him.