Naruto and Sasuke are the face of the Naruto franchise and two of the most iconic anime characters to ever exist. The Naruto series reached its conclusion on November 10, 2014, and has since begun a continuation with Boruto.
Despite Boruto Uzumaki leading this new era of Shinobi, the importance of Naruto and Sasuke absolutely cannot be understated. These two are still the face of the entire franchise and continue to fight for the sake of the entire world. Unfortunately, in Boruto Part 1, specifically in chapters 53 and 55, both Naruto Uzumaki and Sasuke Uchiha were tremendously weakened. Now, in Boruto: Two Blue Vortex, their return is edging closer, and new power-ups are already lined up for them in this new series, which we are all excited to witness.
In Naruto Chapter 673, which was officially released on May 5, 2014, in Shueisha's Weekly Shonen Jump issue #21, 12 years ago, Naruto Uzumaki and Sasuke Uchiha received their last significant power-ups by Masashi Kishimoto. These power-ups came as both of the ninjas met Hagoromo Otsutsuki, the Sage of Six Paths, and received half of his chakra each. Naruto received the Six Paths Yang chakra, while Sasuke got the Six Paths Yin chakra, and with these powers, they both awakened new jutsu. Naruto Uzumaki gained access to Six Paths Sage Mode, while Sasuke gained access to the Rinnegan, which awakened in his left eye. With these powers, these two were able to fight against the likes of Six Paths Madara and, later down the line, against Kaguya Otsutsuki.
“So one obtained the Senjutsu of the Six Paths, and one obtained the Rinnegan. Too bad, I've got both of those powers at the same time!" — Madara confirms Naruto and Sasuke's new powers, Naruto Chapter #673
By adulthood, their powers had grown even further to the point where they could fight against the likes of Momoshiki Otsutsuki, after he had fused with Kinshiki, without too much trouble. That said, as the story continued, it was apparent that Naruto Uzumaki and Sasuke Uchiha needed new powers. While Naruto did gain access to a completely new power in Baryon Mode, in Boruto Chapter 25, on November 19, 2020, it was temporary and lasted only for a matter of minutes. Since then, neither of the two has received a new form, and if anything, they have been nerfed tremendously. Naruto Uzumaki lost the powers of Kurama in Boruto Chapter 55 on February 19, 2021, while Sasuke Uchiha lost the power of his Rinnegan in Boruto Chapter 53 on December 20, 2020. Now, in Boruto: Two Blue Vortex, however, both of them are set to reach new levels of power with a new upgrade from Kishimoto and Ikemoto.
"Normally, when a Jinchuriki's Biju is extracted, they die. But that doesn't apply to you. The Biju chakra simply vanishes. It might look to others like you're dead, but you're just in a temporary state of shock. Don't worry, you'll wake up soon. The price to pay for Baryon Mode is my life, not yours. I've got to go, but be real careful. You aren't gonna have superhuman strength anymore. So if you overdo it, you'll end up joining me soon. But until that day comes, you be well, Naruto." - — Naruto weakens after losing Kurama, Boruto Chapter #55
In the Boruto series, both Sasuke Uchiha and Naruto Uzumaki are bound to receive significant strength upgrades, and that is quite clear for us to see right from the get-go. During the timeskip of the Boruto series, which lasted for 3 years, Sasuke Uchiha trained himself as well as Boruto Uzumaki in order to face significant threats to come in the future. The full results of this training have not been revealed to us yet, but Sasuke grew in power so dramatically that he was able to take one of Code's eyes from him in combat, despite being outnumbered with all the Claw Grimes around him.
To put that into perspective, Code, at this point, was significantly stronger than Jigen and around the same level as Isshiki. For Sasuke to be able to injure him in battle without even having the Rinnegan or any Six Paths powers shows that he unlocked unique powers during the timeskip and grew tremendously in terms of power.
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