Boruto expanded greatly the lore of the Otsutsuki clan and the Ten-Tails, with Isshiki perhaps one of the biggest driving forces in that regard. While it's difficult to envision a way for the character to return in the coming arcs, his actions in the story, particularly when it comes to his space-time jutsu, still have considerable ramifications in the story.
Isshiki was shown having a personal dimension in Boruto, where he kept the Ten-Tails a prisoner, leading to a lot of speculations about how it could affect the latter's evolution into Jura. Moreover, there are some details in his dimension that suggest a certain growth and change each time this place is shown to the reader in the manga.
Disclaimer: This article contains spoilers for the series. Any opinion expressed here belongs to the author and not Sportskeeda as a publication.
Explaining the importance of Isshiki's space-time jutsu in the world of Boruto
The Ten-Tails and Isshiki's dimension first appear in chapter 35 of the first part of the manga and depicts the creature in captivity.
Its interactions with the Otsutsuki depict the Ten-Tails as suffering and cultivating a significant amount of anger, which is further emphasized by speech bubbles that are the largest and most jagged in the manga, signifying its raw and untamed anger.
Moreover, in chapter 55 of the manga, the Ten-Tails is seen sleeping and looks rather harmless, but it's also emphasized that Isshiki treats it mainly as a chakra battery. It suggests a constant track record of the creature being abused and manipulated by someone who didn't think that the Ten-Tails was an individual but rather a tool.
All that connects with the current events of the manga where the Ten-Tails were manifested into the strongest Shinju clone up to date, Jura. It seems that this character wants to understand the behavior of people instead of searching for massive destruction, which could be connected to the abuse he received from Isshiki.
More details regarding this
Chapter 35 of the first part of the Boruto manga shows that Isshiki's dimension has these peculiar walls with Otsutsuki panels, which also become a bit taller when shown once again in chapter 77. Moreover, when Sasuke appears in this dimension, the Otsutsuki seems to have disappeared, although there's no proper explanation for this change.
There's also a circular platform that seems to be similar to all the Dojutsu in the series, like the Rinnegan, Sharingan, Byakugan and even Isshiki’s unique eye pattern. The character of Amado mentioned how Isshiki had remains of Shibai Otsutsuki, so this platform could be a remnant of that individual's eye, emphasized by the fact that this person has a horn that was similar to his.
It's difficult to gauge how all of this connects with the overarching narrative of the story but Isshiki as a whole has been a major factor in the series. It has been theorized for years that Shibai Otsutsuki is going to be the final boss of the series, so perhaps this is another hint of his return to the mortal plane.
Final thoughts
The current Boruto manga has a lot of questions and mysteries, with some of them being a part of Isshiki's dimension. All of it could mean nothing in the grand scheme of things and mere aesthetics but could also hint at something greater in the story.
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