So basically the exact same reason they don't want to make the protagonist of Tonari no Kyuuketsuki-san a vampire.
Who had the brilliant idea of introducing this "failure" concept to vampire stories? It's weird it already happened twice in yuri.
I have seen that concept in a decent chunk of vampire stories outside of yuri as well. It actually makes sense as a story device. Vampires are immortal, vastly physically superior to humans, and usually possessing psychic and/or magical powers on top of that. Without some sort of limiting factor, they would rapidly become the dominant species on the planet. Like, if Gika had an option to create what would essentially be an unstoppable army, do you think she would not go for it in a heartbeat?
Basically, if you have a story where vampires are a small group living in hiding, you need a way to explain such a state of existence. Otherwise, if nothing is preventing them to just raise a few million vampire soldiers and conquer the world for themselves, you are left pondering why have they not done so already, especially since vampires in general tend to feature ambitious and power-hungry individuals.
However, with this and similar limitations placed upon them, their existence in the shadows, always hiding, makes perfect sense. They are incredibly powerful but also incredibly rare, and humans could easily wipe them out or supress them in other ways through sheer numbers.
last edited at Nov 25, 2021 5:53AM