Sora is likely a character created within the fanfic world. He could be a powerful shinobi with unique abilities that Naruto can learn from. Maybe he has a special chakra nature or some extraordinary combat skills.
Well, it depends on how you look at it. Technically, in official Kingdom Hearts content, Sora is a key character. But in the realm of fanfiction, many writers take the essence of Sora and create their own unique stories that are not part of the official canon but are still inspired by the Kingdom Hearts universe. So, in that sense, he can be considered as a major element in Kingdom Hearts fanfiction.
Well, it depends on your perspective. Some might find it sad because of the difficult situations Sora has to go through, but others might see it as a journey of growth and resilience.
Yes, 'Ahiru no Sora' manga has come to an end. The final chapters tied up loose ends and provided a conclusive ending for the characters and their adventures.
Well, Sora could potentially be a new type of ninja. Maybe he has some unique jutsu that the Naruto world has never seen before. For example, if he has powers related to light, he could use it in combat against the various villains in the Naruto universe like the Akatsuki. His character could also bring in new storylines, such as his origin being a mystery that Naruto and his friends have to uncover.
Perhaps Sora is a reincarnation of an ancient ninja in the Naruto fanfic. His memories start to surface slowly, and these memories are linked to a great threat that once faced the ninja world. Naruto and his friends help Sora come to terms with his past while also trying to prevent the return of this old threat. Sora has to learn to control his new - found powers that are awakening as his memories return.
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.
Yes, there could be such fanfics in the fandom. Fanfic writers often come up with creative and sometimes unexpected family relationships for characters. They might explore how Aqua being Sora's mother could change the story's dynamics, character development, and the overall narrative. It gives a whole new perspective to the existing storylines and characters associated with Sora and Aqua.