There are fanfictions where Shinji Ikari has different relationships with the other characters. In some, he forms a closer bond with Asuka earlier on and they work together more effectively against the Angels. This changes the whole dynamic of the story as their combined strength and new - found friendship alters the course of events.
One idea could be that Shinji Ikari is transferred to the Highschool DxD school as an exchange student. He might initially struggle with the very different supernatural environment compared to his Evangelion world. His experiences with Angels could give him a unique perspective on the devils and other beings in the Highschool DxD world, leading to some interesting interactions and storylines.
One idea could be a crossover with a superhero universe. Shinji Ikari could gain superpowers and have to navigate the complex world of superheroes, dealing with their moral codes. Another could be a crossover with a fantasy world like Middle - earth. He might find himself on a quest with hobbits or elves. A third idea is a crossover with a post - apocalyptic world, where Shinji's experiences in his own apocalyptic - like setting of Neon Genesis Evangelion could be put to use in a different kind of desolate landscape.
One aspect to consider in Evangelion Rei x Shinji fanfiction is the complex relationship between the two characters. Rei is often depicted as an enigma, and her connection with Shinji can be explored in many ways. Some fanfictions might focus on how they understand each other's loneliness. Shinji, being a socially awkward and troubled boy, and Rei, with her own unique nature, can form a bond that goes beyond the surface level shown in the original anime. This can lead to stories that delve deep into their emotional growth and mutual support.
First, understand Shinji's character well. He is a complex and often troubled character. Know his insecurities, his relationships with others like Misato, Asuka, and Rei. Then, come up with a unique plot. It could be a what - if scenario, like what if Shinji was the first to fully understand the true nature of the Angels?
First, you need to have a clear idea of the other universe or story you want to cross over with. If it's a well - known one, study its lore, characters, and settings. Then, think about how Shinji Ikari would fit into that world. What would his role be? For example, if it's a magical world, would he be a reluctant hero or a confused outsider? Next, plan out the basic plot. How will the two worlds collide? And finally, start writing, don't worry too much about making it perfect at first.
One popular trope is the 'protective Shinji' trope. Since Rei can seem vulnerable at times, Shinji is often written to be very protective of her. This can be seen in situations where they face danger together. Another trope is the 'Rei's discovery of emotions through Shinji'. As Rei is not fully in touch with her emotions in the original, fanfiction writers like to explore how Shinji can be the key to her unlocking a range of feelings like love, jealousy, and friendship.
The 'Evangelion Rebuild Shinji Time Loop' fanfiction likely explores the concept of Shinji being trapped in a time loop. This could lead to many interesting developments. For example, Shinji might have the chance to relive certain events and make different choices each time. It could also be a way to delve deeper into his character, as he may experience different emotions and growth in each loop.
One main theme is often identity. Since Shinji is female in these fanfictions, there's exploration of how she sees herself in a world that was originally designed around a male Shinji. Another theme is relationships. Her interactions with characters like Misato or Gendo could be different.