It can show Sora learning more about the nature of darkness from Young Xehanort. Since Sora is mainly associated with light, this interaction could make him more well - rounded. For example, he might start to understand that not all those associated with darkness are completely evil.
A really exciting plot could involve a world where Young Xehanort and Sora's memories are swapped. They have to navigate each other's lives and relationships while also dealing with the threats in their own respective worlds. Sora would be faced with the darkness that Young Xehanort is associated with, and Young Xehanort would have to deal with Sora's friends and their positive outlook. This would be a great way to explore their characters in new and different ways.
You can often find such fanfiction on dedicated fanfiction websites. Some popular ones include Archive of Our Own. Just search for 'Young Xehanort and Eraqus' on the site, and you'll get a list of relevant stories.
A fanfiction might focus on a journey they took together. They could be on a quest for a powerful artifact. Along the way, they face various challenges that test their friendship and their understanding of the Keyblade. For example, they might encounter a group of powerful Heartless and have to combine their skills to defeat them.
Well, I've read one where they go on a journey to find a lost charm that has special meaning for their relationship. It was really sweet as it showed how much they rely on each other and their growing feelings. You can try searching for ones with high ratings and positive reviews to find a good Sora x Kairi fanfic.
One great Sora x Kairi fanfic is 'A Journey of Hearts'. It beautifully explores their relationship as they go through different adventures in the worlds they visit. The author does a wonderful job of portraying their deep connection and the growth of their feelings for each other.
One common theme is adventure. Given Sora's nature from his original story, fanfics often put him and Elizabeth in exciting adventures. Another theme is friendship turning into love. They start as friends or allies and gradually develop deeper feelings for each other.
The writing style matters a great deal. Vivid descriptions of their emotions, like Sora's determination to protect Kairi or Kairi's love for Sora that she might be shy to express at first. Using the right words to convey the depth of their feelings and the beauty of the settings they are in, whether it's a magical kingdom or a serene beach, can make a fanfic truly engaging.
One common theme is exploration. Since Sora is used to traveling between different worlds in his own story, and Ariel has a sense of adventure in exploring the human world, their fanfics often involve them exploring new places together.