Well, first of all, the themes are different. 'Harry Potter' focuses on themes like friendship, courage, and the battle against dark magic. Belloc's works may have different central themes. Also, the characters are unique to 'Harry Potter'. Harry, Hermione, and Ron are very distinct characters that don't have any relation to Belloc's characters. And the magic system in 'Harry Potter' is highly elaborate and different from what we might expect in Belloc's works.
The setting. Harry Potter is set in a modern - day, albeit magical, Britain. There are schools, trains, and a society much like our own but with magic. Hercules is set in ancient Greece. Also, the characters. Harry is a young wizard learning about magic, while Hercules is a demigod with superhuman strength. Their storylines are also different. Harry's is about fighting evil in the wizarding world, Hercules about his heroic deeds in Greek mythology.
The settings are different. Harry Potter is set mainly in the UK, at Hogwarts School of Witchcraft and Wizardry and other wizarding locations. Percy Jackson is set in modern - day USA, with a lot of action taking place at Camp Half - Blood. Also, the magic systems vary. In Harry Potter, there are spells, potions, and magic wands. In Percy Jackson, the demigods have powers related to their godly parentage like Percy can control water because his father is Poseidon. So they are clearly not related in a fanfiction way.
I don't think it's a valid statement. 'Harry Potter' is an original and highly creative work by J.K. Rowling. It has its own unique world - building, characters, and storylines that are not related to Belloc's works in the sense of being fanfiction. Fanfiction usually refers to works created by fans based on existing works, but 'Harry Potter' was not created in this way.
Simple. Look at the origins. 'Harry Potter' was created by J.K. Rowling through her own imagination. There's no link to 'Devilman' in its creation process.
We can disprove it by simply looking at the source. Harry Potter was created by J.K. Rowling. It has a distinct set of characters, plotlines, and a magical world that is unique to it. There's no sign of nero or any relation to nero fanfiction in the official Harry Potter works.
By simply looking at the origin and development of the 'Harry Potter' series. J.K. Rowling created it independently with her own ideas and creativity. There's no evidence of it being based on 'Mormont' fanfiction.
By considering the overall themes of the Harry Potter series. It's mainly about the struggle against dark magic in the form of Voldemort, the importance of love and friendship, and the coming - of - age of the young wizards. Incubus fanfiction would have a completely different set of themes that are not present in the Harry Potter story. For example, in Harry Potter, we have the story of the Triwizard Tournament which is all about magic, competition, and international cooperation among wizards. There is no room for the inappropriate and unrelated concepts of incubus fanfiction.
By simply looking at Harry's actions. He constantly tries to save people, like when he saved Ginny from the basilisk in 'The Chamber of Secrets'. A psychopath wouldn't care about others' well - being like that.
First, examine the world - building. 'Harry Potter' has a detailed and unique world of magic with its own rules and institutions. Then look at the plot. It's about a young hero's quest to defeat an evil wizard. There are no elements from the 'Lucifer' concept in any of this. Also, the moral and ethical undertones in 'Harry Potter' are different from what one would expect in a 'Lucifer' - related story. So, it's clear that 'Harry Potter' is not 'Lucifer' fanfiction.
In Harry Potter, the story is driven by a prophecy and the battle against Voldemort. The values promoted are friendship, courage, and loyalty. However, Dark Fae Fanfiction may explore different values related to the Fae culture, such as the power dynamics within their society, the allure of the Fae's magic which can be both beautiful and dangerous. The overall tone of Harry Potter is more of an adventure - filled and coming - of - age story, while Dark Fae Fanfiction can vary widely in tone from dark and mysterious to romantic depending on the specific story.