Eh, it's not important. Basically, around your time humans destroy the world, and vampires rebuild it and enslave humanity. 12,000 years later, Earth is a shithole, women are treated like trash, monsters and mutants run amok, the Frontier has turned people into monsters themselves, and we're all scared shittless of the nobility.

Guy named Alucard did it.

And I live with him because I'm in love with his son. It's really stupid when you think about it.

And I'm getting annoyed and blattering, I'm sorry.