Carp Blowing Bubbles

Reed has accidentally crossed over into a virtual reality game that is not due for release until a year later.
Inside the game, he is a Progenitor Vampire that has been hiding amongst humans to study magic that also owns an ancient castle with over 200 vampiric descendants. 
What a roller-coaster ride.
Thankfully, he can still return back to Earth. But the biggest crisis staring down upon him is the open beta scheduled for a year later, and the coming of the players.
How can he, as a vampire, get strong enough to fight against the oncoming catastrophe incarnates – the players themselves!!
This is the tale of a Progenitor Vampire leading a group of vampires and humans farming the land.

Extra—The Origin of the System, The Legend of Dawn City