A time - travel fanfiction could be interesting. Maybe they go back in time to prevent some of the tragedies that happened in the game. Along the way, they discover secrets about each other and their connection to the world that they never knew before. This could involve them interacting with their past selves as well.
A fanfiction about Lightning and Vanille could be set in a parallel universe. In this universe, they are not part of the main events of Final Fantasy 13. Instead, they are ordinary people living in a small village. But then, strange things start to happen that are related to their powers (which they might not be fully aware of yet). They have to figure out what's going on together and in the process, their relationship deepens.
They could have a story where they swap roles. Vanille takes on a more leadership role, which is usually Lightning's territory, and Lightning has to learn to follow. This would be a great way to explore their characters in a different light.
A fanfiction could focus on how Lightning and Vanille help each other heal from their past traumas. Lightning, who has always been a fighter, could learn from Vanille's more empathetic side. Vanille, in turn, could gain strength from Lightning's determination. They could share their memories and dreams, and perhaps form a deeper bond that goes beyond friendship.
One great Lightning x Vanille fanfiction could be 'The Bond Beyond'. It delves deep into their relationship as they face new challenges together in a post - game world. The story focuses on how their different personalities complement each other.
There is a fanfic named 'Light and Vanilla'. It focuses on the unique connection between Lightning and Vanille. The author delves deep into their personalities and how they complement each other, creating a story full of emotional depth.
One great fanfiction could be where Hope and Vanille are on a journey to discover a hidden power in the world of Final Fantasy XIII. They face many challenges together and their relationship deepens as they rely on each other for survival.
A possible plotline is that a new threat emerges in the world of Final Fantasy 13 that can only be defeated by a combined power of Hope and Lightning. However, they have some differences in their approaches to fighting, which they need to overcome. For example, Lightning is more impulsive while Hope likes to plan. They argue at first but then learn to work together effectively.
One idea could be a story where Hope and Lightning are stranded in a mysterious realm within the Final Fantasy XIII universe. They have to rely on each other's skills to survive and find their way back. For example, Lightning's combat expertise and Hope's strategic thinking could combine to overcome the strange creatures they encounter.
You can try fanfiction.net. It has a large collection of various fanfictions, including those related to Lightning and Vanille. Just search for their names in the search bar.
One plot idea could be that Lightning and Cloud are from different worlds that are on the verge of colliding. They have to team up to find a way to stop the cataclysm. Along the way, they discover they have more in common than they thought and develop a deep bond.
You can start by looking on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms have a large collection of fan - made stories, and you can search specifically for Final Fantasy XIII fanfiction involving Hope and Vanille.
One idea could be exploring the backstories of the minor characters. For example, the SeeD trainees who don't get much spotlight in the game. Another could be a 'what if' scenario, like what if Squall and Rinoa didn't end up together? It could also be interesting to write about the world of Final Fantasy 8 from the perspective of an ordinary citizen living in one of the cities, dealing with the sorceress wars and the chaos that ensues.