The theme of self - discovery is also present. As they interact with each other, they learn more about themselves. In some fanfictions, Sera discovers her hidden powers while being with Nyktos, and Nyktos learns about his own emotions and vulnerabilities.
Sure. In fanfiction, the idea of Alucard as Sera's master has the potential for a great deal of creativity. It could mean that Alucard has a responsibility for Sera's growth and protection. This relationship might be set in a particular fictional world with its own rules and cultures, which would further shape the story around them.
I'm not entirely sure specifically about a 'sera yaoi visual novel' as it could be a relatively unknown or niche title. It might be a visual novel that features yaoi themes. Yaoi typically involves romantic or sexual relationships between male characters.
I'm not sure about the exact plot as I haven't read it in detail. But generally, it might involve the adventures of Sera in a world related to the Royal Stars.
I'm not aware of any specifically named'sera yaoi visual novel' being extremely popular. There are many yaoi - themed visual novels in general, but not one that I know of with this exact name in the mainstream.
One great nyktos and sera fanfiction is 'The Journey of Nyktos and Sera' which beautifully explores their relationship. It has some really interesting plot twists.
One possible fanfic could be about Mika and Krul forming an unexpected alliance. Maybe they have to work together to face a common enemy that threatens both of their existences. In this story, Mika might start to see Krul in a different light, not just as a vampire but as someone with her own motives and desires.