Aqua is popular as well. Her loyalty and her own journey in 'Kingdom Hearts Birth by Sleep' make her an interesting character for crossovers. She could be paired with characters from different franchises in fanfiction. For example, if she were to cross over with a character from a magical girl anime, her strong will and magical abilities could lead to some really engaging storylines.
Aqua is quite memorable. She is strong - willed and very protective of her friends. Her magical abilities and her role as a keyblade wielder make her stand out.
The main characters are Ventus, Terra, and Aqua. They are Keyblade wielders.
Ventus is one of the main characters. He has a kind heart and is on a journey of self - discovery. Aqua is another important character. She is strong and protective. Terra is also a main character, and he is often conflicted between the light and the darkness within him.
A cool concept might be the fusion of different storylines. Maybe the fanfiction combines the story of 'Kingdom Hearts Birth by Sleep' with another related or even unrelated game's story. This can lead to unique plot twists and character developments. For instance, if it crosses over with a Final Fantasy story, we could see how the magic systems of both interact and how the characters adapt to the new rules.
Sora is often very popular in Kingdom Hearts fanfiction. He's the main protagonist in the game, so many fans like to write about his further adventures or different versions of him. Another popular character is Riku. His complex relationship with Sora and his own journey with light and dark make him a fascinating subject for fanfiction writers.
Roxas is often a popular character in Kingdom Hearts Darkness fanfiction. His connection to Sora and his own experiences with the Organization XIII, which is related to the darkness, make him a fascinating subject. Another popular one is Axel. His complex personality and his role in the events involving the darkness in the Organization XIII storylines draw a lot of attention.
Riku often features prominently in Kingdom Hearts Dark Fanfiction. His initial struggle with the darkness in the main games makes him a prime candidate for darker interpretations. Also, Xehanort is quite popular as he is already a major villain, and fanfiction can explore his motives and backstory even further in a darker context.
It mainly follows the stories of Ventus, Terra, and Aqua. They are Keyblade wielders. Their adventures involve battles against the forces of darkness, exploration of different worlds, and their individual quests for self - discovery and growth within the complex Kingdom Hearts universe.
The plot mainly focuses on the backstories of the key characters in the Kingdom Hearts universe before the events of the main games. It delves into their relationships, their quests, and how they are all connected to the overall Kingdom Hearts story.
Sasuke would also be a great choice. His dark past and his search for power could parallel some of the characters in Kingdom Hearts: Birth by Sleep. He might have an interesting dynamic with characters like Terra. Sasuke could be both intrigued and challenged by the power of the Keyblades and the different magic systems in the Kingdom Hearts universe. His own Sharingan abilities could also create some really cool interactions when combined with the powers in the Kingdom Hearts world.