Chooki and Toxsa's dynamic in fanfiction can be really interesting. They could be depicted as a great team, with Chooki's bravery and Toxsa's intelligence complementing each other. For instance, in a battle, Chooki might charge forward fearlessly while Toxsa figures out the enemy's weak points from the side.
A fanfiction about Chooki and Toxsa could also be a coming - of - age story. They start off as young, inexperienced Tenkai Knights. As they grow, their relationship evolves. They might have a falling out over a misunderstanding, like a difference in opinion on how to handle a certain mission. But through this, they learn to communicate better and ultimately become even closer friends.
The dynamic between Guren and Beni is appealing. Guren is often brave and impulsive, while Beni is more level - headed. In fanfiction, this contrast can create interesting situations and interactions.
One idea could be exploring the backstories of the Tenkai Knights more in - depth. For example, how they got their powers and what their lives were like before becoming knights. Another could be a crossover with another similar - themed anime, like creating a scenario where the Tenkai Knights have to team up with characters from another mecha - based show to fight a common enemy. And a third idea is to focus on the relationships between the knights and how they grow and develop over time.
One idea could be a story where Gen and Guren have to team up against a new, powerful enemy that threatens their world. They start off not getting along well, but as the battle progresses, they learn to respect each other's strengths and work together effectively.