One interesting plot could be Tsukune's journey to fully master his godlike powers. Maybe he has to face a new and powerful enemy that only his enhanced abilities can defeat. He could struggle with the moral implications of having such great power.
A possible plot could be that Tsukune's godlike powers are discovered by the outside world, not just the Yokai Academy. This could lead to humans and other supernatural beings trying to either control him or eliminate him. He would then have to decide whether to hide his powers or use them to change the relationship between humans and yokai on a larger scale.
Ginei is a character that can't be ignored. His werewolf nature and his rivalry with Tsukune, especially when Tsukune has godlike powers, can create a lot of tension. He could be trying to prove himself as strong as Tsukune or trying to take over the leadership at the academy. Also, Ruby with her unique vampire powers and her connection to other characters can be a very popular character in the fanfiction.
One thing that makes it interesting is the exploration of different character traits. A female Tsukune might have different reactions, emotions, and ways of dealing with the supernatural world of Rosario Vampire. It could also lead to new plotlines, like how she might handle the power dynamics in the school or with the various vampire clans. Plus, seeing the story from a female perspective in a typically male - centered story can be really refreshing.
First, know the characters well. Tsukune is a complex character with his own growth arc. Make sure to stay true to his personality. Also, understand the world of Rosario Vampire, like the different monster species and their cultures. Then, come up with an interesting plot. It could be a new adventure for Tsukune or a different take on his relationships.
One common theme is the development of Tsukune's vampire powers. Writers often explore how he copes with his new abilities and how they change his relationships with the other characters.
One plot idea could be Tsukune and Ria going on a journey together to discover a hidden power within the Rosario Vampire world. This could involve them facing various monsters and challenges along the way, and their relationship growing stronger as they rely on each other.
A more romantic plot could involve Yukari developing deeper feelings for Tsukune and trying to confess her love in a world full of supernatural distractions and challenges. It could show how their relationship might develop in a different way from the original story.
Tsukune's vampire form in fanfiction can vary greatly. Some authors might focus on the emotional aspect of him dealing with this new side of himself. He could struggle with the urge to feed on blood, or he might embrace it as a part of his new identity. Additionally, his relationships with other characters, especially Moka, can be significantly affected by his vampire form.
Another plot could involve a competition within the harem. Maybe there's a school event where the members of the harem compete in various challenges, like a magical duel or a race, to win the protagonist's favor for a day. This would bring out different sides of each character in the harem.
Well, a plot idea could be that Kurumu and Tsukune get trapped in a time - loop. They keep repeating the same day over and over, and in the process, they learn more about each other's true selves. Each repetition of the day brings them closer together as they figure out how to break the loop.
One plot idea could be Tsukune's further exploration of his unique powers in the Rosario Vampire world. He might encounter a new type of enemy that challenges his abilities in ways he hasn't faced before. Another could be a love triangle involving Tsukune, Moka, and another character, creating a lot of drama and tension. Maybe Tsukune has to go on a quest to find a lost artifact that has significance in the vampire world, and along the way he discovers more about his own heritage.