A cool concept in Naruto x Yu Yu Hakusho fanfiction could be the exploration of different afterlives. In Naruto, there's the idea of the Pure Land, and in Yu Yu Hakusho, there are various spirit realms. Fanfiction could explore what would happen if a character from one series ended up in the afterlife of the other series, and how they would adapt and interact with the entities there.
There's also 'Naruto and Yu Yu Hakusho: A Shared Destiny'. This one is interesting because it delves deep into how the two worlds could co - exist. It's not just about battles but also about the characters learning from each other's cultures and values. It has a lot of character development and the writing style is engaging.
There's a fanfiction called 'Love in the Demon Realm'. It's a unique take as the reader character finds themselves in a romantic entanglement with a demon from the Yu Yu Hakusho universe. The author does a good job of exploring the cultural and power differences between the human reader and the demon character.
One common theme is power - up. Writers often explore how characters from one series could gain new powers if they were in the other series' world. For instance, Naruto getting some of Yusuke's spirit energy - based powers.
There's this fanfiction called 'Kurama's Unlikely Companion'. The OC in it is a bit of an outcast, and Kurama is initially hesitant about getting close. But as the story progresses, they form a deep connection. The story is filled with action and drama, and the relationship between Kurama and the OC is very well - explored.
The main difference is the gaming element. In 'yu yu hakusho gamer fanfiction', there are often references to game mechanics like leveling up, stats, and skills. Regular Yu Yu Hakusho fanfiction usually focuses more on the original story elements and character relationships without these gaming aspects.
A common theme is power - up. Naruto getting godlike powers similar to those in Yu Yu Hakusho, like enhanced spiritual energy. Another theme could be friendship. Naruto might form new friendships with Yu Yu Hakusho characters while using his new powers.
You can find 'Naruto' and 'Yu Yu Hakusho' fanfiction on fanfiction.net. It has a large collection of various fanfictions related to these two series. Just use the search bar and type in relevant keywords like 'Naruto Yu Yu Hakusho crossover' and you'll get a bunch of results.
The character relationships are also very different. Fem Naruto, being from a different world, has a fresh perspective when interacting with Yu Yu Hakusho characters. She might form unexpected alliances or rivalries. For instance, she could have a friendly rivalry with Yusuke where they both learn from each other's fighting styles.
In general, it is legal to engage with Yu Yu Hakusho fanfiction. Fanfiction exists within a legal gray area in some ways, but as long as it adheres to certain principles. The fanfiction should be non - commercial (in most cases), and not be using the characters in a way that defames or misrepresents the original work too severely. Reading fanfiction on common platforms is a common and legal practice, as long as the platforms also follow the appropriate laws regarding intellectual property.