Chapter 59: The Thunder Sword

Isamu's power was formidable. Ordinary ninjutsu couldn't even scratch him. Using basic techniques would only waste chakra and pose no threat to him whatsoever.

Jiraiya decided to employ the S-rank Lightning Release ninjutsu, Ten Myriad Thunder Prison, which he had obtained earlier today. Since the Senju clan wanted to test his strength, he would show them his full potential. He wanted them to understand that Tsunade had made the right choice in trusting him. He was capable of helping the Senju clan rise from their current struggles.

As Jiraiya formed hand seals, the sound of crackling thunder filled the barrier. Lightning surged more and more violently within the confined space. Isamu's pupils contracted as he watched the increasingly intense flashes of lightning. His expression turned grim. He could sense the danger emanating from the growing storm. It was a powerful technique—one he intended to stop—but Jiraiya's hand-seal speed was astonishing. He had no chance to intervene before the entire area was engulfed in dazzling blue light.

"Ten Myriad Thunder Prison!"

With a final hand seal and a thunderous shout, Jiraiya unleashed the technique. Within the barrier, countless bolts of lightning, each as thick as a bowl, materialized. Every bolt radiated destructive power. As Jiraiya's palm dropped, the lightning bolts streaked toward Isamu at a speed impossible to track with the naked eye.

"What kind of Lightning Release jutsu is this? How could it be so powerful?"

Outside the barrier, the entire area was lit by the overwhelming radiance of the lightning, making it impossible to see what was happening within. The three Senju jonin observing the battle exchanged astonished glances. They could feel the immense power behind Jiraiya's technique.

"If any of us were in Isamu's place, we'd have no chance. We'd be dead within moments," one of them admitted grimly.

The lightning storm raging within the barrier was nothing short of divine punishment. Each bolt struck with the weight of heavenly wrath.

"This isn't a jutsu I've ever seen used in the village before. It's definitely an S-rank technique. For Jiraiya to master something like this at the age of fifteen is truly extraordinary."

The three jonin's respect for Jiraiya deepened. To master an S-rank jutsu at such a young age was a feat few could achieve. Still, they were not worried about Isamu. They knew his capabilities. Even if he couldn't completely counter the jutsu, he wouldn't suffer any life-threatening injuries.

Tsunade, watching from the side, was equally shocked. Her eyes reflected the brilliant flashes of lightning within the barrier.

"I had no idea Jiraiya was this strong. I need to train harder. I can't fall too far behind him, otherwise, if he's ever in danger, I won't be able to help him," she murmured to herself.

Beside her, Nawaki's eyes sparkled with admiration. "What an incredible technique. Sis, your judgment is spot on!"

The deafening roar of thunder echoed continuously from the barrier. Bolts of lightning struck relentlessly at Isamu's location, creating a dazzling sphere of light where he stood. The ground beneath him cracked and split under the onslaught. After several moments, the storm began to dissipate as Jiraiya's chakra reserves ran low.

The Ten Myriad Thunder Prison had consumed over half of Jiraiya's chakra. For most shinobi, such a loss would mean retreat was the only option. Without chakra, a shinobi became vulnerable and weak, unable to sustain a prolonged battle. But Jiraiya was different. His body quickly began replenishing the depleted reserves, drawing on his cellular chakra to restore what was lost.

As the lightning subsided, Isamu emerged from the destruction, standing amidst a sphere of water. In his hand was a sword radiating lightning energy. Though unscathed by the attack, his appearance was disheveled. His once-white hair was now frizzed and singed, and his blue ninja gear was torn and cracked. Despite his weary state, the damage was minimal.

"That's quite the powerful Lightning Release jutsu. If it weren't for the Sword, I'd have been in serious trouble," Isamu admitted, his tone tinged with respect.

The sword he wielded was no ordinary weapon. Forged from a rare metal and imbued with lightning energy, it had once belonged to the Second Hokage, Tobirama Senju. Known as the Thunder God's Sword, it was designed to counter powerful Lightning Release techniques. Most of the energy from Jiraiya's jutsu had been redirected into the ground, sparing Isamu from its full force.

(T/N: That's a real name, there's a wiki: The Sword of the Thunder God is a blade that was once wielded by Tobirama Senju.)

Jiraiya observed the weapon closely, his sharp eyes taking in every detail.

"So that's the Thunder God's Sword. No wonder it's capable of nullifying my jutsu. Truly an extraordinary relic of the ninja world."

One of the Senju jonin finally spoke up. "There's no need to continue this match."

Jiraiya's performance had exceeded their expectations. He had proven himself worthy in their eyes, and there was no point in prolonging the fight. The three jonin turned and left, satisfied with what they had witnessed.

Isamu dismissed the barrier with a wave of his hand, his expression softening.

"You didn't disappoint me. You've passed the Senju clan's test."

His smile carried a hint of approval as he addressed Jiraiya. For the first time, his demeanor showed genuine warmth. Jiraiya wasn't just Tsunade's choice, he had now earned the recognition of the Senju clan as a whole.

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Pls Drop some Power Stones

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