As we don't have more information about this 'the romance of lust novel', it's impossible to determine the main characters. They could be two young lovers, or perhaps a more complex set of characters like a group of friends where there are different love and lust dynamics among them.
Since I don't know the specific novel, I can't say for sure who the main characters are.
Since I haven't actually read 'Love Lust and a Millionaire Novel', it's difficult to say exactly who the main characters are. However, based on the title, we can make some assumptions. There is likely to be a millionaire character who is at the center of the story. There may be a female lead who gets involved with this millionaire, and their relationship could be a major focus. There might also be other characters like business associates of the millionaire or friends of the female lead who play important roles in the development of the story. For example, a jealous business rival could add some conflict to the plot, or a loyal friend could offer advice to the female lead about her relationship with the millionaire.
Since I haven't read the novel, I can't be certain. But likely, the goddess of love and lust herself is a main character. There might also be characters who are in love with her, or those who oppose her because of her lustful nature.
Since we only have the title 'love lust and life novel', it's difficult to say exactly who the main characters are. It might be a group of friends. One friend could be more driven by love, always looking for deep emotional connections. Another might be more influenced by lust, being more impulsive in relationships. And they all are dealing with the ups and downs of life together.
Since I don't know the specific 'lust for darkness story', I can't say for sure who the main characters are. It could be a protagonist who is on a journey of self - discovery in a dark world, or perhaps an antagonist who embodies the 'lust for darkness' and drives the conflict in the story.
It might be a group of friends who support each other in their quests for a more fulfilling life. They each have their own dreams and challenges, but together they inspire a lust for life in one another. For example, one might be an artist seeking inspiration, another a traveler looking for new experiences, and they all influence each other's perspectives on life.
I'm not sure specifically as it depends on the fanfic. But it could be the main KND operatives like Numbuh One, Numbuh Two, etc. They might be the ones experiencing the lust and love emotions in the story.
There is often a protagonist who has been wronged in some way and is driven by a deep - seated need for revenge. Then there might be an antagonist, the one who committed the wrong in the first place. There could also be a sidekick or a confidant for the protagonist, someone who tries to talk them out of their lust for revenge or at least helps them in their journey in some way.
Perhaps there is a female character who serves as a muse or a love interest for the main character. She might have her own dreams and desires, and through her relationship with the artist, we see different aspects of the lust for life concept. For example, she might inspire the artist to create better works, and in turn, he helps her pursue her own goals.
I'm not sure specifically as the title doesn't give much away. But it could be a character who represents lust, like a seductive figure. Maybe also characters who are affected by this lustful character, such as a naive lover or a moral authority figure trying to stop the spread of lust.
Since I haven't read it, I can't say for sure. But it might include Harry Potter as he's in the title. There could also be new characters created specifically for this fanfiction who are related to the bloodline of lust.