Naruto: Starting with One Punch That Shattered the Ninja Academy

Reborn in the Naruto world, Yeshan awakens Origin-Energy chakra, free of elemental restrictions and capable of devouring any chakra, with ten times the reserves of an elite jonin. He also has the ability to use any ninjutsu instantly without hand signs, the instincts of a martial arts grandmaster, and an all-knowing perspective that lets him see the entire story unfold.

At the Ninja Academy? He shatters a bully with one punch and burns the training ground with a hand-sign-free Fire Style: Great Fireball Technique, leaving Iruka shouting, "Monster!"

As a genin? He catches the Lightning Blade with one hand and kicks Zabuza away. Even Jiraiya's senjutsu is no match for him.

At the Chunin Ninja Exams? Orochimaru dares to reach out? He crushes him on the spot! The Sand and Sound villages rebel? He sweeps the field with hand-sign-free ninjutsu!

The Akatsuki? Hidan is burned to ash, Kakuzu's hearts are all crushed, and Nagato and Konan meekly surrender.

The Five Kage Summit? If they won't listen, he fights! The Raikage is sent flying, and the Tsuchikage's Dust Release is nullified. The Shinobi World Alliance answers to him.

Madara Uchiha? Kaguya? Sorry, in the face of absolute Origin-Energy chakra, even gods have to prostrate themselves!

"The rules of the Shinobi World? I am the rules."

Yeshan stands atop Hokage Rock, gazing upon the world he has completely rewritten. With a casual wave, he sends the Tailed Beasts off to serve as "mascots."

In this life, there's no more suffering. Not a chance!