You could write a fanfiction about a mission that goes completely wrong for the Black Order. It could start with high hopes and a well - planned strategy, but then everything falls apart due to unforeseen circumstances like a new and powerful enemy showing up or a betrayal from within. This would add a lot of drama and tension to the story.
A great idea for Black Order fanfiction is to focus on the relationships between the members. There could be a story about two members who start off not liking each other but then through a series of events, they learn to respect and rely on one another. This could involve them working together on a difficult task, sharing their personal stories, and gradually growing closer.
One idea could be exploring the backstory of Cal Kestis before he joined the Jedi Order. Maybe he had a friendship with a non - Jedi on his home planet that influenced his view of the Force. Another idea is to create an alternate universe where Cal teams up with different characters from the Star Wars universe, like Ahsoka Tano. And a third idea could be to focus on the Inquisitors and give them more depth, perhaps showing their internal struggles with serving the Empire.
Well, you could have a fanfiction where Sasuke, after his redemption arc, teams up with the law enforcers in Konoha. They could work together to track down rogue ninjas who are stealing powerful jutsu scrolls and selling them on the black market. This would involve a lot of action scenes as well as investigations into the underground network of the shinobi world. Also, consider a story where Hinata uses her Byakugan in the context of Law and Order. She could be a key witness in a case where someone is trying to steal secrets from the Hyuga clan, and she has to use her skills to help the authorities find the culprit.
Some ideas for Law and Order OC fanfiction include having an OC as a medical examiner with a hidden past that slowly surfaces during the course of the investigations. This could add an extra layer of mystery to the cases. Also, an OC could be a hacker who uses their skills to help the police, but also has to deal with the legal and ethical implications of their actions. Another option is an OC who is a witness protection officer and the challenges they face in protecting the witnesses while also trying to ensure justice is served in the cases related to those witnesses.
A crossover with the Naruto universe could also be exciting. Imagine Servants like Archer using their skills against ninjas. Naruto characters might be intrigued by the concept of Servants and their powers. It could lead to a story where they exchange combat techniques and learn from each other.
One idea could be creating an OC who is a time - traveling mage from a future where the Grail Wars have had catastrophic consequences. This OC could be on a mission to change the past to prevent the disasters. Another idea is an OC that is a hybrid of a Servant and a human, with unique abilities and a complex backstory that ties into the existing lore of Fate Grand Order. Maybe an OC who was experimented on by the mages in Chaldea and gained strange powers as a result.
One idea could be exploring the backstories of the minor characters. For example, what was the life of that one survivor in the corner store before the apocalypse? Another could be creating an alternate ending where the characters find a safe haven much earlier. And also, a fanfiction about a character's journey to find their lost family during the Black Summer events.
One idea could be exploring the backstories of the cursed children in more detail. For example, you could write about a cursed child's life before she was paired with a promoter. Another idea is to create an alternate ending to the story, where the situation between the Gastrea and humans is resolved in a different way.
Well, you could write a fanfiction about the characters going on a quest to find a long - lost magic spell that could change the balance of power in the Clover Kingdom. Or perhaps a story where the Black Bulls have to team up with their rival squads to fight a common, extremely powerful enemy. You could also explore how the characters would react if the grimoires had minds of their own and could communicate with their owners.
One idea could be exploring the backstories of the Black family members. For example, delving deeper into Sirius Black's time at Hogwarts before his expulsion. Another could be creating a story where a member of the Black family tries to break free from the traditional pure - blood ideology and embrace a more inclusive wizarding world. Or perhaps a fanfiction about the Black family during a time of great wizarding war, showing how they coped and the different paths they took.
Another interesting angle is to create an alternate universe for 'The Black Prince'. In this universe, he could have different abilities or face different challenges. For instance, if he had the power of magic in this AU, how would it change his story and his role in the world?