You could also build the plot around a tournament or a competition. Sephiroth and Lightning are both invited to participate in a battle royale of sorts. As they fight through the other opponents, they start to respect each other's skills. Eventually, they realize that there is a conspiracy behind the tournament and they must team up to expose it and bring the real culprits to justice.
Another way is to start with their individual stories. Sephiroth might be on a quest for power, while Lightning is on a mission to save her sister. Their paths accidentally cross when they are both drawn to a mysterious location. There, they discover a secret that binds their fates together. This discovery then sets the stage for the rest of the plot, as they have to deal with the consequences of this new knowledge.
It could be a story full of epic battles. Imaginary Sephiroth is often associated with great power and Lightning is also a strong character. They might start as rivals, each thinking their own way is right in saving the world or achieving some grand goal. Their first encounter could be filled with tension as they size each other up, not sure whether to fight or cooperate.
The contrast between the two characters. Lightning is a strong - willed and determined female character, while Sephiroth is a complex and powerful villain. Their interaction can create a lot of tension and unique storylines.
Well, in addition to the above - mentioned places, you could also check out some dedicated fanfiction forums. These forums usually have sections for different pairings. However, be aware that the quality of fanfictions can vary greatly. It's a good idea to read reviews or comments if available to ensure you get an engaging and well - written story.
Fanfiction.net is also a well - known platform. Just use the search function and type in 'sephiroth x lightning' and it should show you the relevant stories. However, the quality may vary, so you might need to read a few to find the really good ones.
There might be a fanfiction where Sephiroth and Lightning are from different dimensions and accidentally end up in the same world. They have to figure out how to get back while also dealing with the new environment and each other's personalities. This could lead to a lot of character development and interesting interactions.
His character can also develop through his interactions with characters from different time periods. Meeting people with different values and beliefs can make him question his own, and this self - reflection can lead to significant changes in his personality. For instance, if he meets a group of peaceful people in the past, he might start to consider a different way of life. He could become more complex, not just the one - dimensional villain we often see in the original story.
Some writers develop characters in sephiroth crossover fanfiction by giving him new relationships. Maybe in a crossover with a post - apocalyptic world, he forms an unlikely alliance with a group of survivors. This new relationship forces him to reevaluate his views and can lead to changes in his personality. He might start to care about others in a way he never did in his original world, which makes for a very interesting character arc.
One plot point could be that the male OC is a new recruit in Sephiroth's unit. He initially fears Sephiroth but gradually comes to understand him and they form an unlikely friendship.
Naruto's character would likely become more brooding. Sephiroth's influence could make Naruto more introspective and less likely to wear his heart on his sleeve. He might develop a colder exterior to match Sephiroth's aloofness.
The story could also focus on their relationship as twins. Despite growing up in different worlds, they might have a deep, instinctual connection. They could start to learn about each other's cultures and worlds. Fem Harry could introduce Sephiroth to things like Hogwarts and Quidditch, while Sephiroth could show her his world's advanced technology or unique combat styles.