One possibility could be that in a magical world where Harry Potter exists, Batman's skills and detective abilities are overlooked. Maybe Batman is magically transported to the wizarding world and is initially dismissed as just a Muggle with no real value. But he starts using his gadgets and his sharp mind to solve mysteries that even the wizards can't figure out, like a series of strange disappearances in Hogwarts that are related to some dark magic - Muggle technology combination.
The plot could be that Batman, who has been somehow drawn into the Harry Potter universe, finds himself in a world where his methods are not understood. The Ministry of Magic views him with suspicion and neglects his offers to help. Meanwhile, Harry Potter is dealing with his own problems. But when a new threat emerges that combines the worst of both the Muggle and wizarding worlds' evils, Batman's skills become crucial. He has to convince Harry Potter and his friends that his way of doing things can be useful, and together they fight against this new and dangerous foe.
Well, perhaps in this fanfiction, Harry Potter and his friends are so caught up in their own magical battles and politics that they don't pay attention to the new arrival - Batman. Batman, being the Dark Knight, starts to secretly train some of the more outcast students at Hogwarts, teaching them self - defense and investigation skills. He then uncovers a plot by a group of dark wizards who are planning to use Muggle technology against the wizarding world, which Harry Potter and the others had no idea about because they neglected Batman's perspective.
The main antagonist could be an old - time wizard who has been in hiding for centuries. This wizard is extremely powerful and has a disdain for both Muggles and modern - day wizards. He sees Batman as a pest and uses his magic to try and get rid of him. Harry Potter and his friends are so used to their own ways of fighting that they don't realize the importance of Batman in dealing with this ancient and powerful foe until it's almost too late.
One possible plot could be that in a magical world where both Harry Potter and Pokemon exist, Harry discovers a hidden Pokemon reserve in the Forbidden Forest. He befriends a neglected Pokemon there, like a Pikachu that was left behind by an irresponsible trainer. Harry decides to take care of it, using his magic to help it grow stronger. Along the way, they face challenges from both the wizarding world, who are suspicious of this new creature, and from other Pokemon who see the Pikachu as an outsider in their world.
Well, if we're talking about a Harry Potter and Elsa fanfiction where they are neglected, it could start with Harry being sent to a new school or place outside of Hogwarts where no one knows about his past. He feels lost and alone. Elsa could be in a similar situation in Arendelle, where for some reason the people have forgotten about her powers and she is treated as an ordinary citizen. They might cross paths in a magical forest or something. At first, they might be too wrapped up in their own feelings of neglect. But gradually, as they share their stories, they realize they can use their skills (Harry's magic and Elsa's ice powers) to help each other. Maybe they end up creating a new community where those who are neglected can find a home.
One possible plot could be that a character from Fairy Tail gets accidentally transported to the Harry Potter universe but is neglected by the magical community there. They then have to find their own way to get back while also discovering new magical abilities and making unexpected friends.
Well, perhaps in this fanfiction, Naruto is somehow transported to the Batman universe and is neglected by the local heroes at first. He then has to prove himself by using his ninja skills in Gotham's dark alleys, like using his shadow clones to confuse the bad guys and his speed to catch the elusive criminals.
Well, in this kind of fanfic, Harry could be neglected by Hogwarts staff. For example, teachers may be too preoccupied with other matters, such as political unrest in the wizarding world. Harry, feeling alone and abandoned, might venture into dangerous areas like the Forbidden Forest more often. He could encounter a powerful and malevolent creature that he's not ready to face, and ultimately die because there was no one to rescue him. Also, the Sorting Hat could potentially mis - sort him into a house where he doesn't fit in at all, and the neglect from his housemates could contribute to his downfall.
One possible plot could be that Batman finds himself in the wizarding world of Harry Potter. He could use his detective skills to solve some magical mysteries that even the wizards are having trouble with, like a series of unexplained disappearances in Hogwarts. Maybe he teams up with Harry Potter and his friends, and Batman teaches them some non - magical self - defense techniques in return for learning about magic from them.
Well, it could be that the female Harry Potter grows up with Batman's sense of justice and discipline. Maybe she learns martial arts and detective skills from him. And she might use her magic in a more stealthy and strategic way, like Batman uses his gadgets.
One possible plot could be that Voldemort's dark magic starts to seep into Gotham City. Batman, being the detective he is, starts to notice strange and magical happenings. Meanwhile, Harry Potter, Ron and Hermione get transported to Gotham through a magical accident. They team up with Batman to stop Voldemort's influence from spreading further. Harry uses his magic skills and Batman uses his gadgets and combat skills to take on the Death Eaters and Gotham's villains who have been corrupted by the dark magic.
Well, it could be a really interesting and unique concept. Maybe in a fan - made story, Harry Potter, who is neglected in some way, perhaps by his friends or the wizarding community, finds solace in singing fanfiction. It could be that the lyrics of the fanfiction he sings are about his own experiences, like his feelings of isolation or his longing for acceptance. This could be a new take on the Harry Potter universe, exploring his character from a different angle.