One possible plot could be that she, being a blind billionaire, uses her resources to create a new kind of magic school or training center. This center could be focused on teaching magic in a way that accommodates different disabilities, inspired by her own blindness. She could also be involved in some sort of magical mystery where her blindness actually gives her an advantage in solving it.
The plot could involve her using her billionaire status to influence the wizarding politics. As a female Harry Potter, she has a certain amount of fame already. But being blind, she might face some prejudices too. So she could be on a journey to break those barriers and make the wizarding world a more inclusive place. She might fund projects that aim to make magic accessible to the blind, like enchanted books that can be 'read' by touch or spells that create audible descriptions of the magical surroundings.
Obviously, the main character would be the female Harry Potter herself. There could also be her friends from Hogwarts, like Hermione and Ron, or their female counterparts in this fanfiction. Maybe there would be some new characters, like her business partners or employees in her billion - dollar enterprises. There could also be antagonists who are jealous of her wealth and power, or those who oppose her ideas of a more inclusive wizarding world.
Maybe Harry has been secretly blind all along but has been using magic to hide it from others. He could have developed a special magical ability that compensates for his blindness, like a super - sensitive sense of hearing through magic that helps him detect danger and navigate Hogwarts.
Well, she might amass her fortune through her magical inventions. Just like in the original series, Harry has a great deal of magical talent. If she's female in this fanfiction, she could use her skills to create new spells or magical items that are highly sought after in the wizarding world, which she could then sell for a huge profit.
Perhaps the plot could involve Fem Harry Potter's transformation into a ghoul being a result of some dark magic experiment gone wrong. She then has to find a way to reverse it while facing discrimination from some in the wizarding community who fear ghouls. Along the way, she could discover new magical abilities related to her ghoul form and use them to her advantage.
In this fanfiction, it could be that fem Harry Potter is a big fan of the Uchiha because she sees similarities between their struggle against injustice in their world and her own fight against Voldemort. She could start to train in Uchiha - like ways, maybe learning self - discipline and focus from their example. And she might even find a way to combine magic with Uchiha techniques, creating new and unique abilities for herself.
Well, it could be a really strange plot. Maybe in this fanfiction, Fem Harry Potter is intrigued by Orochimaru's dark and mysterious magic. She might see his ability to transform and experiment with different forms of life as something unique. Since she has her own experiences with magic in the wizarding world, she could be interested in exploring Orochimaru's more unorthodox methods. It could also involve her trying to understand Orochimaru's motives, perhaps thinking that there's some good in his actions deep down, which is a very different perspective from what most in the Harry Potter universe would think.
In a Fem Harry Potter on a farm fanfiction, perhaps she's there to learn a different kind of magic. Farm - related magic that is more in tune with nature. She could befriend the local farmers who are secretly magical folk but have a different way of practicing magic. Together, they face challenges like a magical blight on the crops or a group of poachers who are after the magical animals on the farm. This would give her a chance to grow as a character outside of the Hogwarts environment and learn about a different side of the magical world.
Well, it could be that Fem Harry Potter, being a fan of Catwoman, tries to incorporate some of Catwoman's traits into her own life at Hogwarts. Maybe she becomes more stealthy and agile, using her magic in a way that mimics Catwoman's movements. She might even create a magical version of Catwoman's costume for a costume party at school.
Well, perhaps it could be about Fem Harry Potter using her magic in unique ways to create art. Maybe she can make paintings come to life with a wave of her wand, adding a whole new dimension to the wizarding art world.
Perhaps it could be about Fem Harry Potter being inspired by pirates and going on adventures on the high seas. She might use magic in pirate - like ways, like using spells to control the winds for her pirate ship.