There could be demons with special knowledge. Naruto might meet a demon who knows about ancient ninja secrets or prophecies. This demon could either help or hinder Naruto depending on its motives. He could also run into demons that are in exile from the demon world, and they might be more willing to cooperate with Naruto as they see an opportunity to return to their world through the portal he opened.
One potential consequence could be the release of powerful demons into the Naruto world. This would disrupt the existing balance of power. For example, villages that were previously in a state of relative peace might have to unite against the new threat. The ninja way of life could change as they adapt to fighting these otherworldly demons. Also, Naruto himself might face internal struggles as he realizes the full extent of what he has done by opening the portal.
One common theme is the exploration of new abilities. In these fanfictions, Naruto characters often gain Portal - like abilities such as creating portals, which they then use in combat or for exploration. Another theme is the clash of different worlds. Since Naruto and Portal are from very different universes, seeing how the two worlds interact, like Naruto characters in the sterile and strange world of Aperture Science, is a frequent idea. Also, there's the theme of problem - solving. Just as in Portal where the player has to use portals to solve puzzles, Naruto characters are often put in situations where they need to use their newfound portal powers to get out of tricky situations.
Naruto Portal Fanfiction is a world of creativity for Naruto fans. It allows them to expand the Naruto universe in countless ways. Some fanfictions might be about a time - traveling Naruto who has to fix the past mistakes in the ninja world. Others could be about a Naruto who has lost his powers and has to find a new way to be a hero. There are also fanfictions that explore romantic relationships between characters in a more in - depth way than the original series did. In short, it's a platform for fans to let their imaginations run wild within the framework of the Naruto world.
One consequence could be extreme physical exhaustion. Just like in the original series, opening the gates takes a toll on the body. So Naruto might find himself unable to move or fight for a while after opening the gates in fanfiction.
In this fanfiction, perhaps the female Naruto uses her unique ninja skills to create a one - of - a - kind bar. She might use her speed to serve customers quickly and her transformation jutsu to entertain them. Maybe she hires other ninja as staff, like using shadow clones to handle busy times.
In fanfiction, if Naruto were to open the gate of death, he might gain an extreme power boost. This could potentially allow him to defeat enemies that were previously unbeatable. However, it would likely come at a great cost, perhaps his own life or a part of his soul.
One interesting scenario could be Naruto opening the gates in a new and unexpected way, perhaps using a combination of his Sage Mode and the gate - opening technique to achieve a super - powered state. Another could be him teaching others how to open the gates more effectively, like training Sakura to open the gates for enhanced physical strength in combat.
It could be due to a strange natural phenomenon. There are theories about certain areas on Earth having abnormal magnetic fields or gravitational anomalies that could potentially create a portal through time. In the context of a modern - day story, perhaps a group of scientists discovers such an area while doing research. They unknowingly step into a portal that takes them back to WW2. This would be a really exciting and unexpected turn of events in the story.
One great Naruto and Portal fanfiction is 'The Portal Ninja'. It combines the unique world - building of Naruto with the mind - boggling mechanics of Portal. Another interesting one is 'Naruto in Aperture Science' which has Naruto facing off against Portal - like challenges within the Aperture Science facility. There's also 'Portal Jutsu: A New Way' that creates a really cool crossover where Naruto characters use Portal - inspired jutsu.