The Rasengan's power and the Mystical Palm Technique's terrifying healing ability (second update)

Stars and night gave way to dawn.

Naruto had long since drained his own chakra through his unrestrained use of the Multiple Shadow Clone Technique for training. After that, he had borrowed Kurama's chakra seven times in a row.

In the end, he simply could not withstand the backlash from repeatedly dispelling a thousand shadow clones, so he finally decided to stop after this round.

"At this rate, another couple of rounds will have me crawling home."

The morning sun gradually warmed the earth, but as Naruto watched the thousand shadow clones sway on their feet, his heart went cold.

That dizzying exhaustion would hit him again in a moment.

Yet just as Naruto closed his eyes to rest again-

He suddenly heard a shadow clone in the distance shout in delight, "I did it! I did it!!"

The original Naruto snapped his eyes open. When he saw the stable, smooth, rapidly spinning Rasengan in the shouting clone's hand, he nearly cried.

"It really is a ridiculously powerful training method where quantity turns into quality! In the original story, Naruto spent nearly forty whole days mastering the Rasengan under Jiraiya's guidance!"

Naruto wiped away a tear. "And I mastered it in just seven days by borrowing Kurama's chakra a few times? Holy crap."

Yes, seven days.

But he had spent most of those seven days figuring out how to control his chakra precisely. He had actually only practiced the Rasengan for two days.

"Thanks for the hard work, buddy! Great job! You can all rest now. This time, you're getting a nice long vacation!"

Naruto was essentially talking to himself, finding a little humor in his misery.

"Release!"

Poof, poof, poof... Poof, poof, poof...

The last wave of shadow clones immediately dispelled at his command, each vanishing in a puff