A plot could involve a dark wizard who is trying to create a spell that combines dark magic with vampire powers. Harry and Edward are both targeted by this wizard. They must rely on their unique skills and the help of their friends (like Hermione and the Cullens) to stop the wizard before he unleashes chaos on both the wizarding and vampire worlds.
One idea could be that Harry and Edward meet in a magical forest that exists between the wizarding world and the vampire realm. They initially mistrust each other but then find out they have a common enemy and have to team up to defeat it.
One idea could be that Harry and Edward find themselves in a magical realm together where they have to solve a series of puzzles to save their world. They could use their unique skills, Harry's magic from his wizarding world and Edward's vampire abilities.
One idea could be that Edward, with his vampire abilities, ends up at Hogwarts. Maybe he's initially mistaken for a dark creature but then uses his skills to help Harry in a battle against Voldemort. For example, his super speed could be useful in a chase or his mind - reading ability to outwit the Death Eaters.
In a fanfiction, Fem Harry Potter might be a student at Hogwarts when there is an unexpected portal that opens to the Twilight world. She steps through and meets Edward Cullen. They are drawn to each other in a strange way. Edward is fascinated by her magic, and Harry is curious about his vampire abilities. They end up on a journey together, exploring both the magical and vampiric landscapes. Along the way, they face challenges like jealous vampires in Edward's coven and some wizards who don't approve of Harry's new friendship, which tests their relationship.
Another plot could involve Edward making new friends in the town. These friends could be outcasts like him, and together they form a sort of club. They could then work on projects to beautify the outskirts of the town that have been neglected.
One common plot idea is exploring his past more in - depth, like his time at the military academy. It could show his relationships with other students and how he developed his skills and personality.
One idea could be exploring Edward Mordrake's backstory more in - depth. Maybe his life before the whole 'two - faced' situation, his family, and what led him to become the tragic figure he is. Another could be a modern - day encounter with someone who has a special ability to communicate with him.
One idea could be that Edward, as a cop, is assigned to protect a key witness. During this time, he discovers a complex web of secrets and has to fight against both the criminals who want to silence the witness and some corrupt colleagues. Another plot could be Edward investigating a series of mysterious murders in the city where all the evidence points to a supernatural force. He has to overcome his disbelief in the supernatural to solve the case. And also, Edward could be a rookie cop who gets involved in a big drug - bust operation and has to prove himself to his more experienced partners.
One idea could be that they go to a secluded beach and discover a hidden cove with magical properties. Another could be a trip to a foreign city where they encounter a vampire from an ancient lineage. And they might also go on a mountain vacation and face some dangerous supernatural creatures there.
Perhaps in the fanfiction, there is a parallel universe where Kim and Edward are from different social classes in a more modern - day setting. Kim is a famous artist who is intrigued by Edward's unique sculptures made with his scissor hands. They start to collaborate on art projects, and gradually fall in love as they break down the barriers between their different worlds.
A third plot idea is that Giselle and Edward accidentally swap personalities. Giselle becomes more reserved like Edward used to be, and Edward becomes more bubbly like Giselle. This would lead to a series of hilarious situations as they try to adjust to their new personalities while still ruling Andalasia. Their friends and subjects would be quite confused at first but would eventually help them get back to normal.