Well, Gojo could be a super powerful outsider. Maybe he comes to the Naruto world to study its unique chakra system. His Infinity ability would be a game - changer. He could use it to easily deflect most ninjutsu attacks. And his Six Eyes could help him detect hidden enemies or traps that normal shinobi might miss.
He could play the role of a disruptor. Just like his character in his own universe, he would disrupt the existing power dynamics in Naruto. His overpowered abilities would make him a force to be reckoned with, whether he's on the side of good or bad.
Naruto would become more confident. Gojo's power is extremely strong, and having it would make Naruto feel like he could handle almost any situation. He'd also become more strategic as Gojo's power requires a different approach to combat compared to his normal ninja skills.
A possible plot is that with Gojo's power, Naruto is able to see the world in a new way. He can now perceive curses in the ninja world that were previously hidden. This leads to a whole new side - quest where he has to deal with these curses while still maintaining his duties as a ninja. He might also use Gojo's power to teach other ninjas a new way of fighting, changing the ninja combat system.
In many Geto and Gojo fanfictions, the theme of trust is crucial. Their trust in each other can be tested in various ways. Another common theme is the exploration of their past. What made them who they are? How did their past experiences shape their relationship? And the theme of growth, both as individuals and in their relationship with each other, is also often seen.
One great 'gojo and utahime fanfiction' is 'The Unlikely Bond'. It beautifully explores their relationship in a world full of magic and mystery. The story focuses on how they start from being just colleagues to developing a deep connection. Another one is 'Gojo and Utahime: A Different Path' which takes a unique approach by showing their adventures outside the typical scenarios we see in the original work.
Another theme is the exploration of their different personalities. Megumi is more reserved while Gojo is outgoing and flamboyant. Fanfictions often play with how these two personalities interact and complement each other.
One great 'gojo x reader fanfiction' is 'A Meeting of Souls'. It beautifully portrays the relationship between Gojo and the reader with a touch of mystery. Another is 'Gojo's Unspoken Feelings' which delves deep into Gojo's character while involving the reader in his emotional journey. 'In Gojo's Arms' is also popular as it has a lot of sweet and tender moments between the two. 'The Adventure with Gojo' is a more action - packed one where the reader and Gojo face challenges together. And 'Gojo's Secret Admirer' which has an interesting plot about the reader secretly loving Gojo at first.
Toge Inumaki is important too. His special cursed speech ability makes him stand out. Also, the principal of the school, Masamichi Yaga, is likely to be important as he is in a position of authority and has an influence on Gojo and the other students. There could be other characters like the members of different clans that also play roles in the complex web of the story.
One character could be a talking animal, perhaps a fox with the ability to transform into a human - like form. The fox could be a trickster, leading Gojo into all sorts of adventures and misadventures. There could also be a group of knights in shining armor, but with a dark secret. They might initially seem like the good guys but as the story unfolds, Gojo discovers their true nature. Additionally, a little girl with a unique power that she doesn't fully understand. Gojo takes her under his wing and helps her develop her power while also learning from her innocence.