Who could be the main antagonists in 'Harry Potter King of Demons' fanfiction?

A young man reborn into his favorite world. He was granted some request after his death, but the problem was that the granter had no control over how those request were to be granted. Watch as he grows from a single boy in the dark to a protector who wishes to light the path forward for the magical world one step at a time. ———— I just couldn’t read other fanfics cause this idea just kept ringing in my head. It’s my very first time writing or posting anywhere. And I obviously don’t own any of the settings, but so what? I’m doing cause I felt like it and for the fun of it.

Edward was reincarnated into the world of Harry Potter, an act which excites him giving the fact that this was one of his favorite books. So, he embarks on the path of wizardry in the hope of discovering the way it works, the laws or theories that govern it; he wanted to find its essence. When Edward finally uncovers the answers to the question he pondered on, he suddenly thought to himself: "Since the world of Harry Potter is real, what about all the other anime, movies, games, and books that I read from my past life? And if they are indeed real, how I can I get there?" This story is an Infinite Stream novel where the mc travels through different anime and movie worlds acquiring various magical abilities and knowledge in order to become a supreme wizard that stands on the top of countless dimensions and universes. This is a wish-fulfillment and Mary Sue novel so read at your own risk, and stop complaining about it. This is not a villain story, more like a morally gray one. Warnings: The MC will spend a great deal of time in the Harry Potter World before going to other worlds. I have not decided whether the [Curse Child] is canon or not. I do not care what JK Rowling said. Although this fanfic will be a Harem, the mc will not have a thousand women. Most likely, I will write so that he has a certain relationship with some female characters, then he will leave her in her own universe. Only a few will follow him in his journey. Also, a few men will also be in his group. THIS IS NOT A YAOI. If you enjoy my writing, please go read my other novel. [Journey of the Fate Destroying Emperor] Although the story is slow in the beginning, it is worth the wait for the later plots. Also published on royalroad.com Go check out my Pa.tr.eon: .https://www.patreon.com/LazySageDao Or just go into the site and search for my author name (LazySageDao). So, go and support me if you can. Discord: https://discord.gg/bnsezTApeY Disclaimer: All the characters in this novel belong to JK Rowling, and I'm just using them to write my own story. If the creator of the cover wants me to remove it, comment so in one of the newest chapters.

It is enough just to be in the wrong place at the wrong time. Whether a series of accidents, or a coincidence, but now I have to be reborn in a completely different world. A forced entity that controls the flows of souls in one of the branches of the worlds, contrary to its desire and dislikes for "anomalies", is obliged to give out powers and bonuses - these are the rules. What will life be like for someone who was not destined to survive? If you want to support me or read ahead: https://www.patreon.com/HPMan At least one chapter every day!

A guy dies and is reborn as Draco Malfoy and has to face greater danger than Voldemort. ****Not a yaoi or hentai**** Sigh! The trolls... Also it is a Harem without a system. P.S I don't own harry potter, JK Rowling does.

A studious boy meets a tragic end at the hands of the infamous Truck-Kun. But is it truly the end? Or just the beginning of something more? Reborn into the most secretive and ancient family of wizards, the Pendragons, he becomes the last heir to a lineage that has wielded magic since the dawn of wizardry itself. Far stronger than the sacred Twenty-Eight, their unparalleled power has drawn the envy and wrath of rivals, reducing the once-mighty family to rubble. Stripped of his birthright and adopted by a muggle family, the young Pendragon bides his time, concealing his true identity. But now, the time has come for his awakening. The world will tremble under the reign of the Lord of Fire as he reclaims his legacy and unleashes his fury upon those who betrayed his family. Devastation follows the dragon. His shadow will be the last thing they see. discord: https://discord.gg/ZexRV5gqu9 I don't own any of the characters except OC's I just like to play in J.K Rowling's world :) Just started writing novels so please be patient as I get better over time. I do not own the cover of this novel, credit goes to: Joshua Raphael on Artstation. IF the artist wishes for me to take this down, please leave a message! Otherwise, please check his art out, its amazing. Before you start reading the reviews I advise you to read for yourself first, positive or negative reviews might give you a wrong pre based idea on the story, many great stories on this website have horrible reviews and many poor stories have positive ones, you are the judge of your choice don't let others make you refuse a story just because their opinion of it is different of yours. Happy reading :)

***This is a Harry Potter pre-canon fic.*** [The fic also involves Kingdom Building and real-world muggle geopolitics.] 1969, London Magnus, a 9-year-old boy got lost while watching a parade with his mummy. He looked around for her but only tired himself out, eventually taking a break under a tree in a park. But, that moment changed not just his, but also the destiny of the entire world. Because that tree was not normal, it contained inheritances from an ancient world-renowned wizard and a certain king. The tree had waited centuries for someone worthy and finally, it had found one. But what was so special that made little Magnus worthy? It's not possible that no other 9-year-old child ever slept under the tree in the past centuries. "OH! What a surprise, but a welcome one. At least, now I can rest easy that I made the right choice." The ancient tree thought to itself. ______________________ Tags: No Harem, Kind MC, Strong MC, decently strong to OP MC, Some Kingdom building. More of a slice-of-life story. NOTE: Severus will not end up with Lily. *Daily Updates* [A/N: MC will not magically become stronger and learn everything from chapter 1. He will learn through experience and hard work like normal people. (Except for some stuff that comes naturally to him.) Also, this story exists in the omniverse ruled by Grandpa Universe] _____________________ For advance chapters and more fics -www.patreon.com/misterimmortal ______________________ ***I do not own anything written in this fic except my OC characters.***