Well, in a 'Naruto in Taisho period fanfiction', the characters' outfits would change to fit the Taisho era. Naruto might wear a traditional kimono and hakama. The village of Konoha could be transformed into a more feudal - like settlement, with different social hierarchies and customs. Also, the jutsus could be depicted as ancient arts passed down through generations in that period.
It could be a group of powerful warlords or samurai who oppose Naruto's new - fangled ideas. They might see his ninja - like abilities as a threat to the traditional order of the Taisho period.
Kagome adapts by using her knowledge from her own time. For example, she might use her medical knowledge (if she has any) to help those in need in the Inu no Taisho era. She also has to adapt to the different social norms. Since she's from a more modern time, she has to be careful not to break the unspoken rules of that era. Another way she adapts is by learning the language and customs quickly. She may observe others and ask questions to fit in better.
One common theme is the struggle between different eras. Since Kagome is from modern times and Inu no Taisho from the feudal era, there's often a clash of values and ways of life. Another theme is the power of love to bridge these differences. Their relationship is usually shown as something that can overcome all these obstacles.
One common theme is the alteration of the original timeline. When a character travels back in time to the Inu no Taisho era, they often accidentally or intentionally change things that were supposed to happen. Another theme is the discovery of hidden secrets. The time travel allows the protagonist to uncover things that were long forgotten or not known in the present. Also, there's the theme of self - discovery. As they navigate the different time period, the characters learn more about themselves.
It would probably be really strange and interesting. Naruto's energetic and determined personality combined with Yoda's wisdom would make for some unique interactions. Maybe Naruto would learn some of Yoda's Jedi ways and use them in the ninja world.
Well, in a 'Naruto is Alastor' fanfiction, we could see Naruto with Alastor's powers. He could use Alastor's radio - related abilities to communicate across long distances or to disrupt opponents. Also, his personality might change a bit to be more like Alastor's confident and somewhat unpredictable self. The story could be set in a world that combines elements of the Naruto universe and the world where Alastor comes from. For instance, Naruto could be facing off against enemies that are a mix of ninjas and Alastor - style demons.
It would probably have Naruto with the ability to bend an element like in Avatar. For example, he could be a fire bender and use his chakra to enhance his bending skills, creating new and powerful jutsus.
It could be a really dark and intense story. Naruto characters would be thrown into the nightmarish scenarios that Jigsaw is known for. Maybe Naruto would have to use his shadow clone jutsu to find a way out of a booby - trapped room. The jigsaw - like puzzles and challenges would test the characters' physical and mental limits, just like in the Saw movies.
A 'Naruto is Merlin' fanfiction could have Naruto in the Arthurian world, using his ninja knowledge to survive. He might teach the knights some of his combat moves. Or, if it's set in the Naruto world, he could be the only one with Merlin - like magic, causing others to be both in awe and a bit scared of him. He could use magic to heal wounds like in the Naruto universe where medical ninjas exist, but with a magical twist.
Well, it could be really wild. Maybe Naruto somehow gets transported to the Marvel universe and teams up with the Avengers against Ultron. He'd bring his ninja skills like shadow clones and rasengan, and the Avengers would be both confused and impressed.