For unique characters, consider mixing different animal traits. Like a character who has the body of a human but the ears and tail of a fox. This character could have special abilities related to fox - like senses, such as acute hearing and smell. They could be a rogue or a thief, using their abilities to their advantage in the fantasy world.
A world where dreams are a physical place and people can enter them. But there's a dark side - nightmares are also real and can escape into the waking world. The main character could be a 'dreamwalker' who has to stop this from happening.
Set it in a different time period like the 1920s. Cinderella could be a flapper girl who dreams of going to the big jazz parties but is held back by her step - family. The 'prince' could be a rich jazz musician. Instead of a glass slipper, she might leave behind a beaded headband. And the fairy godmother could be an older, wise jazz singer who gives her the confidence and the right look to attend the party.
One unique name could be 'Lyra'. It has a celestial and musical connotation, which would be perfect for a story set in a magical or otherworldly realm. Another is 'Aria', which is not only a beautiful name but also has associations with music and air, giving a sense of lightness and grace to the character.
One unique idea is to make the animals in a story the main characters. In the 'Narnia' fanfiction, instead of focusing on the human characters, write about the adventures of Mr. Tumnus and the other talking animals. You could also do a crossover with different historical periods. Imagine a fanfic where a character from 'Game of Thrones' ends up in the Victorian era. And for a really different take, write a fanfic where the story is told from the perspective of an inanimate object in the original work. Like the One Ring in 'Lord of the Rings' being able to communicate its thoughts and feelings.
A city made entirely of ice in a land where it never stops snowing. The buildings are carved from glaciers and the people there have adapted to the extreme cold with magic. They might have the ability to create heat within their bodies or communicate with ice spirits.
A deserted island can be a great setting. The isolation forces the characters to rely on each other and their primal instincts. The heat, the sand, and the sound of the waves can add to the sensuality. Another unique setting could be an old, abandoned mansion. The grandeur of the once - opulent rooms, now filled with dust and decay, can create a contrast with the passion that unfolds within. There's also the idea of a high - altitude setting like a mountaintop cabin. The thin air, the cold outside contrasted with the warmth inside, and the feeling of being on top of the world can all enhance the erotic experience in the story.
A story about a person who discovers they have a long - lost twin and how this revelation changes their life. It could involve exploring their different upbringings and the complex relationship that develops between them.
Another idea is that a female Naruto is from a different village and is sent to Konoha as an exchange student. Kakashi is assigned to be her guide. At first, they don't get along, but as they spend more time together, they find common ground. This could be a story about cultural differences, friendship, and how two people from different backgrounds can come to respect and care for each other.
A story about a world where people can trade memories. They go to a special market and exchange their most precious or painful memories for something else. It could explore themes of identity and regret.