One idea could be a fanfic that focuses on Cormoran Strike's early days in the military and how those experiences shaped his detective skills. Another could be a story where Robin and Strike have to solve a case in a foreign country, dealing with different cultures and languages. A third idea might be a fanfic that delves into Strike's family history and how it affects his present-day actions.
Yoshika Miyafuji is often a popular character. Her kind - hearted nature and powerful healing abilities make her a central figure in many fanfics. Writers like to explore her relationships with the other witches and how she uses her skills to help the squadron.
One interesting storyline could be about a new Witch joining the squadron and having to prove herself. She might struggle with fitting in at first, but through her unique skills and determination, she becomes an integral part of the team.
Another theme is cultural clash. When Strike the Blood crosses over with series from different cultural backgrounds, like a Japanese - based series crossing with a Western - based one. The different values, magic systems, and social structures can create interesting conflicts and storylines. For instance, if it crosses with a Western fantasy series, the Eastern vampire lore in Strike the Blood might contrast with the Western magic concepts.
Well, it could be due to his dark past. Sasuke has been through a lot and sometimes in fanfics, that pent - up anger and trauma might make him lash out at Sakura. He might see her as an easy target because she's so close to him.
Well, perhaps Harry is tired of all the chaos in the wizarding world. Maybe he decides to go on strike against the Ministry's unfair rules. He could be striking for better treatment of house - elves or more equality among wizards of different blood status.
You can try fanfiction.net. It has a large collection of fanfics from various fandoms, including Cormoran Strike. Just search for the relevant tags and you should be able to find some interesting reads.
Another plot could focus on the origin stories of some of the side characters. For instance, the backstory of Yukina Himeragi. How did she become an attack mage? What kind of training did she go through? A fanfic could expand on this and also show how her past experiences influence her actions and relationships in the present story.
Kojou Akatsuki is definitely one of the most popular. As the main character, he has a complex personality with his vampire powers and normal teenage boy traits. His relationships with other characters, especially Yukina, provide a lot of material for fanfics.
First, make sure you have a good understanding of the original Strike the Blood story. Know the characters, their personalities, and the world they live in. Then, think about the lemon aspect. It could be a romantic or a more comical take on relationships. For example, you could start with a simple scenario like a date between two characters and build from there.