One consequence could be that the demon attacks him. Since demons are often portrayed as malevolent, a wrong summoning could lead to the demon turning on Harry and trying to harm him physically or magically.
The magic around him could go haywire. If the summoning goes wrong in the fanfiction, it might disrupt the magical balance in the area where Harry is. This could lead to other magical creatures being attracted or repelled in strange ways, and it could also cause problems with the existing spells and wards in Hogwarts or wherever he is. For example, protective spells might start to fail, leaving Harry and others vulnerable.
Yes, it's possible. In many fanfictions, the main character has to find a way to control whatever they summon. Harry, being a powerful wizard in the original series, might use his magic skills and knowledge to control the demon. He could use spells or magical objects to keep the demon in check.
The consequences could be dire. Reapers in the Black Butler universe are not to be trifled with. They are tasked with collecting souls and maintaining the balance of life and death. Summoning one might disrupt that balance. For example, the reaper may take more souls than intended in the area as a result of being summoned, causing chaos among the living. It could also lead to the summoner, Harry in this case, getting into trouble with other supernatural entities who don't want the natural order meddled with.
One possible consequence could be a loss of control. Demons in fanfiction are often depicted as powerful and malevolent entities. If Harry summons them, he may not be able to control their actions, leading to chaos and destruction in the wizarding world. Another consequence could be a corruption of his own soul. Dealing with demons is often associated with dark magic, and this could taint Harry's character and magic.
If Harry summons demons in fanfiction, he could face immediate danger. Demons are often depicted as malevolent entities. They might attack Harry instead of doing his bidding. He could also lose control of the situation, leading to chaos around him. His friends might turn against him when they discover what he's done, seeing it as a step into the dark side of magic.
Well, Harry could be really confused at first. Ouran is a very different world from Hogwarts. He might be shocked by the opulence of Ouran Academy and the strange club system there. Maybe he'd try to find a way to fit in while still being true to his wizard self.
Well, if Harry Potter summons Medusa in a fanfiction, it could be a total chaos. First, just the sight of Medusa could turn many around him into stone. His friends would be in immediate danger. Harry would have to find a way to either control Medusa or reverse the petrification effect. Maybe he'd use some advanced magic he learned from Dumbledore's old books. He might also try to communicate with Medusa, using Parseltongue perhaps, as he can talk to snakes. It would be a really wild and dangerous situation.
Well, first of all, the very act of summoning a demoness would likely be against the rules of Hogwarts. If Harry were to do this, he could face expulsion. Once summoned, the demoness could manipulate the minds of those around her, turning friends against each other. Harry would need to use all of his magical knowledge and courage to resist her influence and find a way to banish her back to where she came from. It could also attract the attention of dark forces outside of Hogwarts that might try to use the situation to their advantage.
One possible plot could be that Harry discovers an ancient spell or artifact that allows him to summon angels during a time of great crisis in the wizarding world, like when Voldemort is at his most powerful. The angels could then offer their celestial magic to help Harry and his friends defeat the dark forces.
Well, for starters, the 'Harry Potter' series is an original creation of J.K. Rowling. It has its own unique plot, characters, and settings. The story mainly revolves around the wizarding world, Harry's struggle against Voldemort, and his growth as a wizard. There's no element of 'demon fanfiction' in it. Fanfiction implies a derivative work based on an existing story in a non - official way, which is not the case with the official 'Harry Potter' series.
One consequence could be a power imbalance. Naruto is extremely powerful, and his arrival might disrupt the existing power dynamics in the wizarding world. Another consequence could be cultural clash. The ninja way of life is very different from that of wizards. There might also be confusion as to how his abilities work within the magic - based system.