Naruto: Starting with Infinite Chakra

"Sign in."

Upon waking up, Jiraiya spoke without hesitation.

This marked his seventh day in the world of Naruto and the second opportunity to sign in. He was eagerly anticipating the reward this time around.

With the Second Shinobi World War on the verge of breaking out, everyone would inevitably end up on the battlefield. It was crucial to improve his strength as quickly as possible. And the system's rewards were undoubtedly the best and fastest way to achieve that.

"Sign-in successful. Congratulations, you have obtained the premium ninja tool, Lightning Flame Blade. It has been placed in the system's inventory and can be extracted at any time."

The system's mechanical voice echoed in Jiraiya's mind.

To his surprise, this time the reward was a ninja tool. From the name alone, it sounded quite impressive. He hoped its actual abilities wouldn't disappoint.

"Extract the Lightning Flame Blade."

Without any hesitation, Jiraiya gave the system his command.

As soon as the words left his mouth, the space in front of him began to ripple. Sparks of lightning and flames suddenly burst forth, clashing violently before merging into a single object—a sleek, sharp blade about twelve inches long.

The Lightning Flame Blade appeared razor-sharp, its surface glinting with an icy sheen that made it look incredibly deadly.

Watching its spectacular entrance, Jiraiya couldn't help but feel even more excited. He reached out to grab the blade, noting that it was so light it felt almost weightless.

"Bang!" "Bang!"

With a few quick swings in the air, the blade emitted sharp, explosive sounds, as though it was slicing through the very fabric of the atmosphere.

Jiraiya turned his attention to a small flowerbed about half a meter high in his home. Raising his right hand, he brought the blade down in a clean arc.

The flowerbed split neatly in two, the cuts impossibly smooth. He felt no resistance during the swing, as if the blade was cutting through water.

Next, Jiraiya retrieved an ordinary shuriken and tested it against the Lightning Flame Blade. With a swift motion, the shuriken was effortlessly cleaved in two, the edges perfectly straight.

"So sharp!"

Jiraiya marveled aloud. Even without considering any additional abilities, the Lightning Flame Blade was already an exceptional ninja tool.

If this blade fell into the hands of an assassin, it would undoubtedly make them far deadlier.

"What are the Lightning Flame Blade's abilities?" Jiraiya asked the system. Surely, the blade had more to offer.

"Reporting to the host: the Lightning Flame Blade can absorb chakra from lightning-style and fire-style jutsu cast by enemies, reducing the power of those jutsu. The absorbed chakra is stored within the blade. The host can then use the stored chakra to release lightning or fire attacks. The more chakra absorbed, the greater the power of the attack."

The system's explanation was thorough.

'It's somewhat similar to the Samehada wielded by Kisame Hoshigaki,' Jiraiya mused.

The Samehada could devour chakra and transfer it to its wielder, but it lacked the ability to enhance the power of jutsu.

"How much chakra from enemy jutsu can it absorb?" Jiraiya asked, knowing this was a critical detail.

"It can absorb approximately fifty percent of the chakra contained in an enemy's jutsu."

"That much?" Jiraiya was stunned. The ability to cut an enemy's jutsu power in half was incredible.

"What's the maximum amount of chakra the blade can store?"

"There is no upper limit to the amount of chakra the Lightning Flame Blade can absorb. However, it must be used within thirty minutes, otherwise, the chakra will dissipate."

"Only thirty minutes? That's a pity," Jiraiya muttered, slightly disappointed.

If there were no time limit, he could inject chakra into the blade daily, storing an immense amount for emergencies. It would have been a formidable trump card.

"How much does it enhance jutsu power?" Jiraiya asked one last question.

The system quickly replied, "It enhances the power of jutsu by sixty percent."

Jiraiya's eyes lit up. A sixty percent boost effectively meant that a single jutsu would hit with the force of nearly two.

All things considered, the Lightning Flame Blade was undeniably a powerful ninja tool.

Jiraiya was certain that even in the entirety of Konohagakure, there wasn't a single ninja tool of this caliber.

"Ding! Daily sign-in mode has been activated."

The system's voice sounded again.

"What's daily sign-in mode?" Jiraiya asked, confused.

"Reporting to the host: with daily sign-in mode activated, the host can now sign in every day to receive rewards. While daily rewards are generally less valuable than the seven-day sign-in rewards, they are still premium items and will not disappoint the host."

Hearing this, Jiraiya was thrilled. This would allow his strength to grow even faster.

"Can I do today's daily sign-in now?" he asked eagerly.

"Seven-day sign-ins and daily sign-ins do not conflict. The host may proceed with today's daily sign-in."

"Sign in!" Jiraiya said immediately, wasting no time.

His system was turning out to be incredibly user-friendly. If only it could become even more generous in the future—perhaps allowing sign-ins every hour!

"Sign-in successful. You have obtained the Lightning Chakra Transformation."

The system notification made Jiraiya feel a tingling sensation throughout his body, like a mild electric shock. The process lasted only a few seconds.

"Well done, system!" Jiraiya exclaimed in delight.

Just moments ago, he had been lamenting his lack of a lightning chakra nature, which would have limited the effectiveness of the Lightning Flame Blade. But now, the system had resolved the issue entirely.

This meant he could fully unleash the blade's potential.

At the same time, Jiraiya was awed by the system's capabilities. It had altered something that was supposed to be determined at birth.

In the world of Naruto, lightning-style jutsu that could pair with ninja tools were far more abundant than fire-style ones. Finding compatible techniques would be much easier now.

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