Boruto: Two Blue Vortex continues the story from where Boruto: Naruto Next Generations left off. The new series follows Boruto and the changes that have happened in the ninja world.
Naruto is still a big part of the story, even though he is not currently in action. In Boruto: Two Blue Vortex, Naruto is sealed away, but his presence still has a strong effect on the characters and the world.
In chapter 77 of Boruto: Naruto Next Generations, Kawaki sealed Naruto and Hinata using Daikokuten. He sealed him in a place that is not affected by the flow of time. This action paints Kawaki as a traitor in the eyes of the village.

But Kawaki did not do this from a place of evil. He genuinely cares for Lord Seventh and his family. He cares so deeply that he does not want Naruto or Konoha to suffer from the actions of villains. According to Kawaki’s opinion, since he is not confident enough in himself to protect Naruto, especially from the Otsutsuki threat, he chose to seal him.
At the end of Boruto: Naruto Next Generations, Eida uses her Omnipotence ability to rewrite reality. She switches the identities of Boruto and Kawaki. Kawaki then informs Eida to tell everyone that Boruto killed Naruto.
Some characters, like Sarada and Sumire, were not affected by Eida’s Shinjutsu. As a result, they never doubted Boruto and did not believe that the Seventh Hokage was dead.

And like that, to almost everyone, Naruto Uzumaki, the Seventh Hokage, was dead. Because of this, Boruto is now seen as a traitor. To protect himself, he leaves the village with Sasuke, promising to come back stronger.
Boruto: Two Blue Vortex begins after a time skip. The story shows the growth of the characters. Boruto has become more serious and stronger. He is now focused on protecting his loved ones and stopping the threats to the village.
Naruto’s absence plays a major role in how things have changed. For someone as powerful as him to not be on the frontlines reduces the combined strength of Konoha. With Code and other God Trees roaming around causing havoc, his strength would have been appreciated.

There are many clues in Boruto: Two Blue Vortex about how Naruto’s seal may not last forever. In the prologue of the anime, Kawaki told Boruto that he would send him to the same place as Lord Seventh. This scene depicts the versions of the characters part of Boruto: Two Blue Vortex. It means that at that point, Naruto is still sealed.
The story builds up tension around his return. Characters like Sarada and Sumire believe that Boruto is not the villain people think he is. Naruto’s comeback could prove this and help set things right.
The village is in danger from powerful enemies, and Naruto is one of the few people who can protect it. If he returns, he could help bring peace and balance back to the ninja world.
Influence in Boruto: Two Blue Vortex

Since Kishimoto chose to seal Naruto and not kill him, he still has a place in the story. Even though Naruto is sealed in Boruto: Two Blue Vortex, Kawaki thinks of Naruto. He wants to protect Naruto from all things he deems threats, including his son, Boruto.
This goal keeps him focused and gives him strength in tough times. There is a possibility that he succeeds in his mission to eliminate all the Otsutsukis' threats and then bring him back. Or maybe, someone else releases him. But there's no question that an iconic and loved character like Naruto is coming back.
Naruto’s bond with Boruto is also a major theme in Boruto: Two Blue Vortex. Even while sealed, Naruto continues to inspire his son. Naruto's teachings have helped Boruto develop both as a ninja and as a person. This emotional bond keeps the viewer interested and advances the plot.

Conclusion
In conclusion, Boruto: Two Blue Vortex keeps Naruto at the heart of the story. Even though he is sealed, his role remains important. The story shows how much he still means to Boruto and the entire village.
Naruto’s possible return could change everything. His strength, wisdom, and love for his family will always be a key part of Boruto: Two Blue Vortex.