Peaceful Rural Life in a Zombie Apocalypse Romance Novel

I reincarnated as the number one lackey of a villainess in a zombie apocalypse romance fantasy novel. The problem was that I knew about it a year before the zombie outbreak. I sold everything, kidnapped my friend, the villainess, and moved into a fortress. In the fortress, I raised chickens, cows, and pigs, sowed seeds, and farmed, living a peaceful rural life… But then, strange people kept coming into the fortress. “Did you know about the appearance of the undead in advance?” The crown prince, who should be next to the saintess, interrogated me sternly. “Can I live here too?” The tower lord, who should be locked up in the tower, came and pestered me for no reason. And then… “Get away from my Vanessa!” My friend, the villainess, who was supposed to be a nuisance in the novel, defended me. I don’t need any of this. I just want to live a peaceful and healthy life here!