In a Harry Potter and Demon King fanfic, how would the characters interact with the Demon King?

They might interact with a mix of awe and curiosity. Harry would be in awe of King Arthur's legend and his noble status. Arthur would be curious about Harry's strange magic. They could start by sharing their stories. Harry would talk about his battles against Voldemort, and Arthur would share his tales of slaying dragons and defending Camelot.

Hermione would probably be very interested in the historical and magical aspects of King Arthur's time. She might study the old magic used by Merlin and try to apply it to her own spell - casting. For example, if Merlin had a spell for weather control, Hermione would be eager to learn how it worked and if it could be adapted to modern wizarding needs.

Naruto would probably approach the Ink Demon with his usual bravado. He'd try to talk to it first, see if there's a way to reason with it. Sasuke, on the other hand, would be more cautious and likely ready to attack immediately. Sakura might be a bit scared at first but then use her medical ninjutsu to try and find a weakness in the Ink Demon's structure. Shikamaru would be thinking of strategies to outwit the Ink Demon, using his intelligence to analyze its movements and abilities.

In this fanfiction, Voldemort could also be involved in a different way. Since Harry is now the son of the Demon King, Voldemort might see him as a threat or a potential ally. Dumbledore would surely play a role too. He might be the one to guide Harry or try to keep him from fully embracing his demonic side. And there could be some magical creatures that are associated with the demonic realm, like imps or minor demons that could be characters in their own right.

The main character of the Supreme Heavenly Emperor Record, Shangguan Tianyu, had been sealed by his parents from the very beginning. I recommend a similar novel, Divine Talisman Pill Emperor. It tells the story of a child who was born sealed and reversed his cultivation technique, thus making his way around the world on the path of cultivation. I hope you like this fairy's recommendation. Muah ~😗

Power is a common theme. The idea of the Demon King often represents a great and perhaps dangerous source of power. In these fics, characters may be tempted by it or have to learn to control it, like Harry dealing with the new - found power associated with the Demon King concept.

The characters could interact through a magical portal that connects the two worlds. Harry Potter characters could enter the Demon Slayer world and vice versa. For example, Hermione could use her vast knowledge of magic to help the Demon Slayers understand the more complex aspects of the demons they fight.

"As a Demon King, I'm Working Hard to Farm" is a fantasy novel about a different world. It tells the story of an otaku who is addicted to anime, comics, and games who transmigrated to another world to become a Demon King, but chose to farm instead of fighting. In addition,"The Demon King on the Road" was a fantasy romance novel. It told the story of a female mage and the demon king. It was a fantasy adventure in a different world. It was very exciting. Finally, I would like to recommend a light novel, the original fantasy novel,"My Helcrown Has a Skin". It was a fantasy story with Helcrown as the background and integrated with the skin system. I hope you like this fairy's recommendation. Muah ~😗

One idea could be that the Demon King somehow infiltrates Hogwarts. Maybe he disguises himself as a new professor. This would lead to a lot of mystery and danger as Harry and his friends try to figure out who he really is.

Typically, the demon king character in these light novels is a symbol of great power. They might be shown as having a dark and menacing appearance, like in some traditional interpretations. However, in more modern 'demon king light novels' such as 'The Eminence in Shadow', the character's 'demon king' side may be more of a role - play or a secret identity that he uses to achieve his goals. And in 'Kumo desu ga, Nani ka?', the character with demon - king - like power has to face the challenges of survival and growth in a world full of other powerful beings.