Well, it could be about Naruto finding himself in a strange new world where he has lost his friends and is mourning their absence. Maybe he's trying to find a way back to his own world while dealing with his grief.
In the 'naruto mourns in another world fanfiction', it's possible that Naruto is sent to another world due to some powerful jutsu gone wrong. He arrives there and discovers that his loved ones have no memory of him. He mourns the connection he had with them in his own world. As he tries to navigate this new world, he has to deal with his feelings of loss and isolation. He may start to question his own identity and purpose without the relationships he once had.
Perhaps in this fanfiction, Naruto is in another world where the people he knew are dead in that world's version of events. He mourns not only their loss but also the fact that this world is so different from his own. He might be on a journey to understand why he's there and if he can change things. He could encounter versions of his friends that are different or face new enemies while in this state of mourning.
Obviously Naruto himself. There might also be some new characters that he meets in this other world. And depending on how the story goes, there could be versions of his friends from his own world, like Sasuke or Sakura, even if they are different in some way in this new world.
Well, it could be that Gilgamesh is transported to a modern world. He might struggle with the new technology and social norms. For example, he could be baffled by smartphones and the concept of social media. Maybe he uses his ancient wisdom and strength to become a sort of protector in this new world, facing off against new threats that are a mix of modern evils and magical creatures that exist in this new world due to some strange rift between dimensions.
Well, it could be about Kaneki finding himself in a world full of magic, where he has to learn new powers to survive. Maybe he meets new characters who are either friends or foes.
In a 'doom slayer in another world fanfiction', perhaps the Doom Slayer is transported to a post - apocalyptic world different from his own. Here, he has to adapt his fighting style to new threats. He could discover new ways to upgrade his weapons using the resources of this strange world. Maybe he even has to face a new kind of demon that has evolved in this different environment.
Well, it could be about Sakura exploring a magical new world filled with strange creatures. Maybe she has to find a way back home while making new friends along the way.
Well, it could be about Danny finding himself in a parallel dimension where the rules of ghost - hunting are completely different. Maybe in this world, ghosts are the rulers and humans are the ones being hunted. He has to adapt quickly and find a way to either co - exist or change things back to how they should be.
Well, one possible plot could be Naruto being transported to the Sonic world. He might initially be confused by the strange new environment filled with fast - paced creatures and loops. He could then team up with Sonic and his friends to fight a common enemy, like an evil wizard who wants to take over both the Naruto and Sonic universes. Using Naruto's ninja skills and Sonic's speed, they could create some really cool battle scenes.
The plot might involve Naruto being pushed to the edge by a global conspiracy. All the major powers in the Naruto world could team up against him for some mysterious reason, like they fear his newfound power or a prophecy related to him. So he has to use his skills and the loyalty of his few remaining friends to stand against the world.
Well, it could be about Naruto arriving in the RWBY world and being confused at first. Maybe he tries to use his ninja skills in a place full of Grimm and Huntsmen. He might team up with Ruby and the others, teaching them some of his jutsu while also learning about Dust and Semblances.
Well, in this kind of fanfiction, Naruto might use his powerful jutsu to influence political situations across the ninja world. He could impose his ideas of peace on all the hidden villages, uniting them under his leadership through sheer force and charisma.