My body, ravaged by a severe illness, found no miraculous cure, and I simply lost my life.

When I next awoke, I had become an anomaly of the world: a vampire.

And though I was a man, I had somehow become a vampire princess───.

While struggling with my new body, and as I desperately tried to carve out a place for myself in town as a 'good' vampire, I ended up lodging with a certain woman.

This is the story of how I, who have become an enemy of the world, nevertheless strive to create a peaceful everyday life.