This takes place in an alternate timeline with a steam punk vibe
The German army proved unstoppable and their marched across Europe. The Russians and the ocean were the only things able to stop their progress. Of course, this leaves most of Europe under German control. As peace settles across the globe again, Germany sets up provinces in their conquered territory. Their airships patrol the skies, preventing any valuable workers from escaping and the newly appointed governors rule with an iron fist.
The war has cost Germany though and they have a shortage of sons and workers. A woman is valued most for her reproductive organs and ability to bear sons.
Many governors resent being sent away from the fatherland. They should be heroes! They are heroes! They often take this anger out on their new subjects, showing their worth and proving how little worth the conquered carry.
The new governor of England and Ireland has his hands full with the rebellious Irish. They dislike being subjected and fight the occupying force. Years pass though and eventually, they settle into this new way of life. There's no escape for the new serf class and life slowly gets better. The war time rations are over and while winter is hard-for the most part people survive.
One Irish maid has the unlucky position of working for the Governor. She's a new hire and thankfully, the notorious pervert hasn't noticed her yet. This maid comes from a boy rich family. Her mother raised 5 boys, only to lose them in the war and her sister has given her husband 2 sons already. But, she isn't German, so perhaps he will leave her alone.
What she doesn't know is the Governor was just turned down. He was denied both his German bride and return to Germany. He's looking for someone to take his displeasure out on and looking for a woman.