One idea could be to cross Twin Star Excorists with another supernatural anime. For example, having the characters from Twin Star Excorists interact with the characters from 'Blue Exorcist'. They could team up to fight a common evil that threatens both their worlds. Another idea is to do a crossover with a magical girl anime. The Twin Star Excorists characters could learn some new magic skills from the magical girls and use them in their own battles.
You could create a crossover where the Twin Star Excorists meet characters from a detective anime. The exorcist skills could be used in a new way to solve crimes that have a supernatural element. Maybe there's a serial killer who is using dark magic and the Twin Star Excorists team up with the detective characters to catch the culprit. This would bring a new dynamic to both the Twin Star Excorists world and the detective anime world.
First, you should be really familiar with both the Twin Star Excorists universe and the other universe you want to cross it with. Know the characters, their powers, and the rules of their worlds. Then, come up with a basic plot idea. It could be as simple as the characters from both universes meeting by accident. After that, start writing an outline. Include the main events, character interactions, and how the story will progress. Don't worry too much about making it perfect at first.
An interesting concept for Twin Star Exorcists OC fanfiction could be an OC who is a failed exorcist at first. They struggle with the basic skills and are often looked down upon. But through a series of events, they discover a new way of exorcising that doesn't rely on the traditional methods. This could involve befriending a particularly difficult spirit and learning from it, which then changes the way the exorcist world views their abilities.
A great idea for a fanfiction would be to create a scenario where the power - up systems in both Naruto and Twin Star Exorcist combine. For instance, an exorcist could learn to use chakra in addition to their normal exorcist powers. This could lead to new and unique combat styles and abilities. They might also face a super - powerful demon that can only be defeated by using the combined powers of both worlds.
A cool plot could be that the twins cross over into a dimension where they are sorted into different houses. Fred in Slytherin and George in Gryffindor. This would create an interesting dynamic as they deal with the different values and expectations of their new houses while still maintaining their close bond. They could also have to face the prejudice and misunderstandings from their housemates due to their 'unusual' sorting.
One idea could be exploring the backstories of minor characters in more depth. For example, you could write about the childhood of one of the exorcist trainees and how they discovered their powers. Another idea is to create an alternate universe where the main characters have different personalities or roles. Maybe in this AU, Rokuro is a powerful demon instead of an exorcist.
One idea could be that the crew of the Enterprise discovers a distress signal from a Star Blazers ship. They then team up to fight a common enemy, like an alien race that is threatening both their galaxies. The different technologies and cultures would create an interesting dynamic.
One interesting idea could be the exchange of technology. For example, the Star Trek's transporter technology might be introduced into the Star Wars universe, changing the way characters travel between planets. Another could be a character crossover, like having Captain Kirk meet Darth Vader. It would be fascinating to see their different leadership styles and moral compasses clash or, perhaps, find common ground.
Well, in some fanfiction, there are crossovers that involve character swaps. For example, Captain Kirk finding himself in the Star Wars universe and having to navigate the politics and power struggles there. He might use his charm and quick - thinking from the Trek universe to make an impact. Another concept could be the Jedi and Vulcans sharing their knowledge of the Force and logic respectively. The Jedi could learn about strict emotional control from the Vulcans, while the Vulcans might be intrigued by the concept of the Force.
One interesting idea is the combination of Star Wars' Force with Star Trek's technology. Imagine Jedi using their Force abilities to interact with Star Trek's advanced consoles or warp drives. Another is the meeting of iconic characters like Luke Skywalker and Captain Kirk. They could learn from each other's leadership styles and approaches to conflict. Also, the different species from both universes coming together, such as Wookies and Vulcans, and how they'd interact culturally.
One interesting idea could be the interaction between the different alien species from both universes. For example, seeing how Vulcans from Star Trek would interact with the Minbari from Babylon 5. Maybe they would exchange knowledge on logic and philosophy.