Maybe the Azur Lane ships find themselves in Gensokyo, the world of Touhou. They have to adapt to the strange new environment filled with yokai and magic. The shipgirls could form alliances with the Touhou characters to solve problems that arise from their two different worlds colliding, such as a shortage of resources in Gensokyo due to the sudden arrival of so many outsiders.
Flandre Scarlet and Bismarck could make an interesting pair. Flandre is powerful but somewhat unpredictable in the Touhou world, while Bismarck is a strong and authoritative figure in Azur Lane. Their interactions could be full of surprises, with Bismarck trying to keep Flandre in check and Flandre being both curious and a bit mischievous around Bismarck.
Another interesting concept is an Azur Lane crossover with a superhero universe. The shipgirls could interact with superheroes, and perhaps their unique powers could be combined in battles. They could also learn from each other's sense of justice and ways of protecting their respective worlds.
Another interesting concept is a yandere fanfic set in an alternate universe. In this universe, the yandere trait is more common among the shipgirls. A particular shipgirl falls for a new recruit and her yandere behavior causes chaos within the fleet as she tries to keep the recruit all to herself, going against the fleet's rules and regulations. This could lead to a lot of drama and conflict as the other shipgirls and the commanders try to deal with her.
Well, in Touhou Project crossover fanfiction, a cool concept is the combination of Touhou with modern-day settings like a big city. Imagine Marisa Kirisame flying her broomstick over skyscrapers. Also, crossovers with other video game worlds are great. For instance, Touhou characters in the world of Super Mario, where they might have to deal with Mario - style obstacles. It's all about mixing the familiar Touhou elements with something new and unexpected.
Fanfics that introduce new adventures for the characters are also interesting. For instance, a story where the Touhou characters have to face a new, unknown threat from a different dimension. This allows for creativity in both the plot and the development of the characters.
Another plot could involve a crossover of the two worlds' educational systems. The students from Ansatsu Kyoushitsu might attend classes in the Touhou world, learning magic instead of assassination. And vice versa, some Touhou characters could come to the school to learn about modern - day combat skills and strategies.
Some popular 'azur lane fanfic' stories often involve the unique relationships between the shipgirls. For example, there are fanfics that focus on the adventures of a particular group of shipgirls as they face new and unexpected threats in the Azur Lane universe. Another type might be centered around the development of romantic relationships between different shipgirls, which adds a new layer of depth to the characters.
Well, in Azur Lane fanfiction, you can find stories that expand on the backstories of the characters. Like how a certain shipgirl was built and what she had to endure before joining the Azur Lane. Also, there are fanfictions that involve crossovers with other popular franchises, which can bring a whole new and exciting dimension to the Azur Lane universe.
A plot could be that some of the Touhou characters accidentally end up in the Undertale world. They then have to find a way back home while also getting involved in the conflicts between the monsters and humans in Undertale.
First, decide which other universe you want to cross Azur Lane with. This is crucial as it will set the tone and direction of your fanfic. Then, research both the Azur Lane lore and the lore of the other universe. For example, if it's a crossover with a game like Pokémon, learn about the Pokémon types, their habitats, and how they interact with trainers. Next, come up with a basic plot. It could be a simple rescue mission where the shipgirls have to save a group of Pokémon from an evil organization in the Azur Lane world. Start writing short scenes or dialogues to get your ideas flowing, like writing a conversation between a shipgirl and a Pokémon trainer.