Kurumu would be a great character to include. She has a crush on Tsukune and her jealousy towards Moka could add some interesting drama to the side story. Also, Mizore, with her cold exterior but warm heart towards Tsukune, could bring in some unique interactions. Gin, being a werewolf, could also be included as he has an uneasy relationship with the vampires, which could create tension and conflict in the side story.
Definitely include Yukari. Her magic abilities and her young, spunky personality can add a lot of fun to the side story. Then there's Kahlua, Moka's sister. Her different personality compared to Moka and her own motives could make for a great sub - plot. And don't forget about Ruby. Her role as a nurse and her knowledge of the supernatural world can be used to drive the side story forward, like if there are some medical or magical mysteries to solve.
There could be a fanfiction where Tsukune and Moka accidentally switch bodies. This would lead to a lot of comical situations as they try to adapt to each other's lives. Moka in Tsukune's body would have to deal with human school life and Tsukune in Moka's body would have to handle the vampire society. Additionally, a plot about a mysterious prophecy that involves both of them and their fates being intertwined with the future of the vampire - human relations could be really engaging.
Tsukune himself is quite interesting. He's a human in a world full of vampires, which makes him an outlier. His journey of adapting to this new world and developing his powers is always engaging. Moka is also a great character. Her dual personality, with the sweet outer self and the more powerful vampire self, adds a lot of depth. Inner Moka especially is a force to be reckoned with. And then there's Kurumu, the succubus. Her pursuit of Tsukune in the fanfiction can lead to some really fun and flirty storylines.
Well, in Vampire Tsukune x Moka fanfiction, one common aspect is the exploration of their powers. Tsukune, as a vampire, has newfound abilities that he has to learn to control, and Moka is there to support him. Their relationship might also be depicted as a sort of forbidden love, especially if there are different vampire clans or factions involved. It adds an element of drama to the story. Sometimes, the fanfiction might focus on how they protect each other in dangerous situations, which really showcases their deep bond.
Love is also a frequent theme. Tsukune may find love within the vampire community or have to deal with his previous human relationships while being a vampire. Sometimes it's a love triangle between a human, Tsukune as a vampire, and another vampire. This adds a lot of drama and emotional depth to the fanfictions. There are also themes of acceptance, both Tsukune accepting his new vampire self and the other characters accepting him for who he has become.
You can start by looking on fanfiction platforms like FanFiction.net or Archive of Our Own. These sites have a large collection of Rosario Vampire fanfictions featuring Tsukune and Moka. Just use the search function and type in the relevant keywords.
Well, Hermione would be a great addition. She could use her intelligence to help Harry and Moka understand the different aspects of their two worlds. For example, she could research about yokai and find ways to use magic to help Moka control her vampire side better.
Moka Akashiya would be a great character to include. She's a vampire herself and could be a love interest for Tsukune, adding a romantic sub - plot. Kurumu Kurono, a succubus, could also be included. Her flirtatious nature would create some interesting dynamics with Tsukune. Then there's Yukari Sendo, a young witch. Her magical abilities could be useful in various situations that Tsukune gets into. For example, when they are facing a powerful enemy, Yukari could use her magic to create distractions or defenses.
In some fanfictions, there might be plots where Moka appears to cheat on Tsukune. However, these are often the creative interpretations of individual fanfic writers and not part of the original story. Fanfiction allows for a wide range of scenarios to be explored, but it doesn't represent the canonical relationship between the characters.
A big part of the allure is the supernatural element. The vampire - human relationship is always fascinating. Fanfiction about Inner Moka and Tsukune can play with this, like having them use their combined powers to defeat a greater evil. It gives a sense of adventure and excitement. Also, the emotional side of their relationship, like how they deal with jealousy or misunderstandings, is often explored in fanfiction.
In some fanfictions, if Moka betrays Tsukune, it could be due to a misunderstanding. Maybe she is being controlled by some external force that makes her act against Tsukune. For example, a powerful vampire enemy might use a spell to make her turn on him.