Harry Potter himself is a likely candidate. Given his heroic nature and the need to constantly fight against dark forces, an Akuma no Mi could be a great addition to his arsenal of skills. It would give him new ways to protect his friends and defeat his enemies.
Since I don't have specific information about this 'akuma to love story', it's difficult to say. But it's likely that there is a character who is an 'akuma' or has some connection to the 'akuma' concept, and then a love interest. Maybe there's a brave hero - type character who falls in love with the 'akuma' against all odds.
Since I don't have specific information about this visual novel, I can't name the exact main characters. But generally in visual novels, the main characters are often those who drive the story forward, whether they are protagonists with special abilities or ordinary people caught up in extraordinary situations.
There could also be an antagonist or a group of antagonists. They would be the ones creating obstacles for the main character and other protagonists. Their actions and motives would be crucial to the development of the mystery and the story as a whole. They might be trying to prevent the riddle from being solved for their own gain or to maintain some sort of power or control within the world of the light novel.
Harry Potter himself is often a popular character in these fanfictions. Writers might explore how he would react to Akuma - related threats. Hermione is also popular as she could use her intelligence to understand and combat Akuma - like phenomena. Another popular character could be Draco Malfoy, perhaps being involved in Akuma - influenced dark magic plots.
Luka is another character that shows up a lot. His calm and understanding nature, along with his relationship with Marinette, provides a contrast to the more chaotic aspects of akuma attacks. His love for Marinette, whether it's unrequited or reciprocated, can be a central part of the fanfiction. He might also play a role in helping Marinette deal with her feelings for Adrien while akumas are causing trouble in their lives.
Iruma is one of the main characters. He is a kind - hearted boy who has to adapt to the strange world of the light novel. There is also Sullivan, who plays an important role in Iruma's life in this new world.
Well, the Akuma origin story could be related to ancient curses. Maybe it was a result of a forbidden ritual gone wrong. In certain tales, Akuma is seen as a manifestation of the darkest human emotions. It gains its power from fear, anger, and hatred, and over time, it has evolved into a terrifying force that preys on the weak and the vulnerable.
I'm not sure if there is a specific fanfic exactly like that. There are so many Naruto fanfics out there, and while some might involve Naruto having an interest in Akuma in some creative crossovers, it would take some serious searching through fanfic platforms to find one.
Well, akumas typically have a back story related to a source of evil or a corrupting influence. It could start with a character who has some sort of inner turmoil or a tragic past. This internal struggle makes them vulnerable to the influence that turns them into an akuma. For example, if a character has lost a loved one and is filled with grief and anger, that might be the trigger for the akuma transformation, leading to a whole new set of actions and a role in the story as an antagonist.