It could be a very interesting novel. Maybe it's about a villainess who has reached an extremely high level in terms of her 'villainy'. She might have extraordinary powers or schemes at level 99. For example, she could be manipulating the entire kingdom's politics or be in a fierce rivalry with the protagonist.
The 'villainess level 99 novel' might revolve around a complex character, a villainess. She could be in a world of nobles, magic or some other fictional setting. Her level 99 status could imply that she has mastered all kinds of villainous tactics. She might be constantly in conflict with the protagonist or other characters. There could be a backstory about how she became such a high - level villainess, like maybe she was wronged in the past and is now seeking revenge in a rather extreme way. There could also be a love interest who tries to change her or is drawn to her despite her villainous nature.
Since I haven't read the novel, I can't say for sure. But typically, there would be the villainess herself. There might also be a hero or heroine who opposes her. And there could be side characters like her servants, allies or enemies in her villainous plans.
One common theme is self - redemption. The villainess usually tries to change her fate from the original bad endings she was supposed to have. For example, in 'My Next Life as a Villainess', Katarina is determined to avoid all the doom scenarios.
The main character is the protagonist who falls in love with the villainess. We often see the story from their perspective as they navigate their unusual feelings.
One main theme is the unconventional love story. It's not the typical hero - heroine love but focuses on loving the so - called 'villainess'. Another theme could be the exploration of character perception, as it challenges the traditional view of who is good or bad in a story.
One of the main themes is probably the unorthodox love story. Since it involves being in love with a villainess, it challenges the typical idea of a romantic lead. Another theme could be self - discovery. The protagonist might be exploring their own feelings and identity in a world that has set norms about who to love and who not to.
In this light novel, aside from the villainess, there are her maids or servants who play important supporting roles. They might be privy to some of her secrets or be involved in her schemes. Also, there are often rival characters, like other noble ladies who compete with the villainess in various aspects, such as social status or the affections of the male lead.
The main themes in this novel include non - traditional love. The love for the villainess is not something we see every day in literature. It also has a theme of character perception. The novel might make readers re - evaluate how they view characters labeled as 'villainesses'. Maybe they are not as bad as they seem, and the protagonist's love for her brings out this new perspective.