A plot could be that Sephiroth is cursed and Aerith is the only one who can break the curse. She has to go on a journey with him, getting to know him better along the way. As they travel, Sephiroth starts to see the world through Aerith's eyes and begins to question his own motives. Or, they could be in a world where their memories are erased, and they meet as strangers. Slowly, they start to regain their memories while also falling in love, but their pasts and the roles they are supposed to play in the grand scheme of things start to pull them apart. Another option is a story where Sephiroth is being controlled by an evil force, and Aerith has to find a way to free him. In the process, they form a deep bond that neither expected.
One idea could be a story where Sephiroth, in an alternate reality, is redeemed in part by Aerith's unwavering kindness. She might show him the beauty of life and nature, gradually chipping away at his dark desires. For example, they could meet in a peaceful forest, away from the chaos of their normal lives, and Aerith could start to teach Sephiroth about the balance of life and how his actions are disrupting it. Another plot could involve time travel, where Aerith goes back in time to try and prevent Sephiroth's fall into darkness. She could see his past, his traumas, and attempt to heal them before he turns into the villain he is known to be. A third idea is a story set in a post - apocalyptic world where Sephiroth and Aerith are the last hope for humanity. They must put aside their differences and work together to bring life back to the planet, learning about each other's powers and finding a way to combine them for the greater good.
There could be a fanfiction where Sephiroth and Aerith are from different dimensions. Somehow, a rift opens between their worlds, and they meet. At first, they are suspicious of each other, but as they interact more, they realize they have more in common than they thought. Maybe they both have a connection to a powerful, ancient magic. Another plot idea is that Aerith is kidnapped by Sephiroth's enemies, and he has to rescue her. In the process, he discovers a side of himself that he thought was long dead - a side that cares about someone other than himself. And a third idea is that they are both reincarnated in a modern world, and they meet again, with a strange sense of deja vu. They start to explore their past connection while also dealing with the challenges of modern life.
A fanfiction concept could also be a story set in an alternate universe where Aerith and Sephiroth are on the same side from the start. They could be part of a team, working together against a common enemy. This would completely change their dynamic and give writers a chance to explore their characters in a new light.
A really interesting plot twist could be that Sephiroth kidnaps Aerith as part of a bet or a challenge from another powerful being. This other being might be manipulating events from the shadows. And as the story unfolds, we find out that Aerith is actually the lynchpin in a much larger battle between different cosmic forces, with Sephiroth being just a pawn in this complex game.
Aerith could use her magic. She has strong healing and nature - based magic. She might be able to use her powers to create distractions, like making plants grow rapidly to entangle Sephiroth or his minions, and then make her escape.
There are some out there. Some fanfictions might focus on how their different powers and destinies could interact in unique ways. For example, Sephiroth's dark and powerful nature contrasted with Aerith's gentle and spiritual essence could make for some really engaging storylines. You could also check out Archive of Our Own for such fanfictions.
The contrast between Aerith and Sephiroth makes the fanfiction interesting. Aerith is a kind - hearted, gentle character, while Sephiroth is a powerful and often menacing figure. Writers can explore how these two very different personalities interact, whether it's a story of redemption for Sephiroth through Aerith's influence or a more complex, dark relationship.
I'm sorry, but I can't recommend adult - related fanfiction as it may contain inappropriate content. However, there are many non - adult fanfictions about Aerith and Sephiroth that are great. You can check out some popular fanfiction websites like FanFiction.net or Archive of Our Own and search for their general - rated stories.
One great place to find Aerith and Sephiroth fanfiction is on Archive of Our Own (AO3). It has a vast collection of fan - created stories. You can use the search function and filter for the specific characters. Another option is Fanfiction.net. There are many talented writers on there who write about this pairing.
Common themes might include complex relationships, power dynamics, and the exploration of the characters' personalities in more intimate or emotional ways. For example, it could explore how Aerith's gentle nature interacts with Sephiroth's more brooding and powerful presence.
There's also 'The Unlikely Bond'. This fanfiction focuses on how aerith's kindness might gradually break through sephiroth's cold exterior. It shows their relationship evolving over time through a series of encounters and shared experiences.
One idea could be that Sephiroth somehow gets transported to the RWBY world. He might initially be seen as a threat, but then the characters realize he has knowledge that could help against a new, powerful Grimm. For example, his combat skills and his understanding of magic - like materia in his world - could be adapted to the Dust - based magic in RWBY.