Another plot idea could be a time - travel crossover. The Glitter Force characters could travel back in time to a point where their predecessors (if there are any in the Glitter Force lore) were fighting a big battle. They could offer their help and in the process, learn more about their own powers and the history of the Glitter Force. This would also allow for some cool interactions between different generations of characters.
First, you need to decide which other series or concept you want to cross over with. It could be another anime, a movie, or even a book. Once you've decided that, start thinking about how the two worlds will interact. For example, if you're crossing over with a different magical girl anime, how will the magic systems work together?
Another possibility is a crossover with a superhero universe. Imagine the doki doki characters getting superpowers. They would have to learn to use their powers for good while also dealing with the typical superhero problems like fighting villains and protecting the city. Their different personalities would lead to different approaches to being a superhero, creating an interesting dynamic within the story.
A fanfic about Ira and Rachel in Glitter Force Doki Doki could explore their relationship dynamic. Maybe it could start with how they first met. For example, they might have crossed paths during a battle against a common enemy. Ira, with his edgy personality, and Rachel, who is full of determination, could have an initial clash of personalities. But as the story progresses, they could come to understand and respect each other more. This could lead to them becoming stronger allies in the fight against evil in the Glitter Force world.
The plot could revolve around Ira's transformation. He could start off as a bit of a troublemaker in the Glitter Force Doki Doki world. Rachel, being a positive force, could be the one to try and reach out to him. She might see something in him that others don't. This could lead to a series of events where Ira slowly starts to change his ways, and Rachel is there to guide him. Their relationship could grow from a tentative acquaintance to a strong friendship, all while they face the challenges of the Glitter Force universe together.
One idea could be a crossover with a popular fantasy series like 'Harry Potter'. The doki doki characters could be sorted into Hogwarts houses and have magical adventures. Another could be a crossover with an anime, for example, they meet characters from 'My Hero Academia' and learn about quirks. Maybe a crossover with a classic novel, like 'Pride and Prejudice', where they experience the social norms of the time.
One idea could be exploring the backstories of the characters more in - depth. For example, you could focus on Sayori's struggle with depression before the events of the game. Another plot could involve a new character joining the club and how they interact with the existing members, like bringing a fresh perspective to the club's activities.
A really cool Glitter Force Crossover Fanfiction could involve a time - travel aspect. Maybe the Glitter Force travels back in time to a period when magic was first discovered. There, they meet ancient mages and learn new spells that they can bring back to their own time to use against their foes. Or they could cross over with a fairy - tale world, like Wonderland from Alice in Wonderland, and have to navigate through the strange and magical landscape while still maintaining their Glitter Force duties.
A third idea is a time - travel crossover. The Glitter Force could be sent back in time to when their predecessors first fought against an ancient evil. There, they must learn from the past and use the knowledge to prevent a recurrence of the same threat in their own time. They could also form unexpected alliances with the earlier Glitter Force members and discover new aspects of their own powers along the way.
One idea could be exploring the characters' backstories more in - depth. For example, you could write about Sayori's struggle with depression before the events of the game. Another idea is to create alternate endings where the characters have different fates. Maybe Monika doesn't become self - aware and the club continues in a more normal way.
Well, some fanfictions focus on the relationship dynamics between the characters. They might show how Yuri and Natsuki could become better friends, rather than just rivals in the club. Also, there could be concepts about the club's activities in a different setting, such as a school festival where they perform a play based on their writings.