Another plot could be that there's a magical accident that transports Harry to Willow's world. There, he has to adapt to the different style of magic and the presence of demons. Willow takes him under her wing and together they work on a way to get Harry back to his world. In the process, they learn from each other's magical techniques and form a strong friendship that transcends their different universes.
Harry would likely be in awe of Willow's unique brand of magic at first. Willow, on the other hand, would be curious about the structured magic system in Harry's world. They might start by sharing their knowledge of spells and incantations. For example, Willow could show Harry some of her more instinctual magic, while Harry could teach her about the formal wand - waving and potion - making in Hogwarts.
Some fanfictions might focus on their relationship development. For example, how they deal with jealousy or misunderstandings in their relationship. This can add a lot of drama and emotion to the story. Another interesting plot could be them having to team up with old enemies in order to save their friends or the world. It creates a complex situation where they have to put aside their differences and work with people they don't trust, all while strengthening their own relationship.
One common theme is her struggle with power. Given her powerful magic, many fanfictions explore how she controls and uses it. For example, some stories show her learning to master her powers without being corrupted by them.
A great plot for a Potter Manor fanfiction could involve a mystery that surrounds the manor. For instance, strange noises at night lead Harry to uncover a long - forgotten chamber. It could also be about Harry restoring the manor to its former glory, perhaps with the help of Hermione's research on ancient magic used in the construction of such manors.
One interesting plot idea could be exploring what would happen if Harry had a different upbringing, like being raised by the Malfoys. It would completely change his view of the wizarding world and his relationships. Another idea might be a time - travel fanfic where Harry goes back to the Marauders' era and interacts with his parents and their friends. This could lead to him preventing certain tragedies or changing the future in unexpected ways. And then there's the concept of a fanfic where the roles are reversed, and Voldemort is the one trying to protect the wizarding world from a greater evil, with Harry being the main antagonist.
In some fanfictions, there might be a plot where a student gets trapped under the Whomping Willow during a full moon and has to be rescued by a werewolf, creating a complex and dangerous situation that tests the relationships between different characters in the wizarding world. The Whomping Willow could also be a central part of a mystery, for example, it might be the key to unlocking a secret about Hogwarts' founding or a long - lost treasure. Characters would then have to figure out how to interact with the dangerous tree without getting seriously injured to solve the mystery.
A traveler could be from a different magical realm entirely and come to the Harry Potter universe. They bring with them unique magical abilities that both fascinate and frighten the wizards in the Harry Potter world. This could lead to a series of adventures where they either share their knowledge or are hunted down by those who fear the new magic they possess.
One idea could be that Hecate, being the goddess of magic, takes Harry Potter under her wing secretly to teach him ancient and powerful magic that Dumbledore doesn't know. This could lead to Harry having new abilities to fight Voldemort.
A possible plot in Harry Potter Planeswalker fanfiction is that a Planeswalker accidentally brings a dangerous creature from another plane into the Hogwarts grounds. This causes chaos as the teachers and students have to figure out how to deal with it. It could also be that a Planeswalker has a special connection to the magic in the Harry Potter world, like being able to sense the presence of magic in a way that wizards can't. They could use this ability to discover hidden secrets about Hogwarts or the wizarding families. Maybe a Planeswalker is on a quest in the multiverse and the Harry Potter world is just one stop on their journey, and their actions in the wizarding world have consequences for their overall mission.
One interesting plot could be a time - travel story in the Harry Potter wonderland. For example, a character goes back in time to the Marauders' era and gets involved in their adventures, while also trying to prevent a future disaster in the wizarding world. Another idea is a story where a new, powerful magic is discovered in the wonderland, and Harry and his friends have to figure out how to control it before it falls into the wrong hands. A third plot could be about an alternate reality where Voldemort won the war, and the remaining good characters have to find a way to reverse the situation in the harry potter wonderland.