They are an interesting pairing because they both have complex backstories. Riku has his journey of dealing with the darkness within him, and Xion has her own identity issues being a replica. Their different experiences can create a lot of drama and tension in a fanfiction. When brought together, their stories can intersect in unique ways. For example, Riku could help Xion come to terms with her identity, using his own experiences of self - discovery.
The fact that they are both connected to Sora in different ways makes their pairing fascinating in fanfiction. Riku has his long - standing friendship/rivalry with Sora, and Xion has a connection to Sora through her very existence as a replica. Fanfictions can explore how their relationships with Sora influence their relationship with each other. Maybe they bond over their shared feelings towards Sora, or perhaps they have to overcome jealousy or other complex emotions related to Sora as they grow closer to each other.
One good fanfiction could be 'Riku and Xion's Unlikely Bond'. It delves into how their personalities, which are quite different on the surface, start to complement each other as they face various challenges in the Kingdom Hearts world. They might initially clash due to Riku's brooding nature and Xion's more innocent yet determined self. But as the story progresses, they find common ground in their loyalty to their friends and their fight against the darkness. This fanfiction might also explore their individual growths as they grow closer to each other.
In a fanfiction of Roxas and Xion at an academy, it could explore their friendship in a new setting. They could form a study group with other characters from the series. Their days could be filled with training sessions in the academy's special arenas as well as normal classes about the history of their world.
Perhaps a story where Xion gets injured and Rixas has to take care of her while protecting her from approaching enemies. This would show his protective side towards her and also give room for some tender moments between them. They could also have deep conversations during this time about their hopes for the future in the Kingdom Hearts universe.
They have a very complex relationship in the game. Axel is often protective of Roxas, and there are many emotional moments between them. This gives fanfiction writers a lot to work with.
Riku and Xion in fanfiction can be portrayed in various ways. Some fanfictions might focus on their growth as individuals within the context of the Kingdom Hearts universe. For example, Riku's struggle with the darkness could be intertwined with Xion's search for her identity. This can lead to really engaging stories that add depth to the existing lore of the game.
In fanfiction, Roxas and Xion often share a deep bond. They have a connection that was initially formed within the complex world of Kingdom Hearts. Their relationship can be depicted as one of friendship that has the potential to be something more. Writers might explore how they support each other through their shared experiences of being part of Sora's heart and their own individual existences.
One interesting fanfiction could be 'Female Riku's Adventure in the Keyblade Wars'. It might explore how a female Riku would handle the complex politics and battles within the Kingdom Hearts universe. Another could be 'Female Riku and the Lost Hearts', where she goes on a journey to find and restore lost hearts in different worlds. There's also the possibility of a fanfiction like 'Female Riku's Bond with Sora', which delves into a unique friendship or more between them.
One plot idea could be Sora and Xion going on a journey to discover a hidden world within the Kingdom Hearts universe. They might face unique enemies and puzzles along the way.
One great fanfic about Roxas and Xion is 'The Bond Beyond'. It beautifully explores their relationship as they struggle with their identities within the Kingdom Hearts world. The author does an amazing job of delving into their emotions and the unique connection they share.
Axel could be the one to give Xion 'the talk'. He's been through a lot and has a good understanding of the world they live in. He could share his experiences with her, especially about loyalty and friendship, as he values his relationships with Roxas and Xion deeply.