I Got Lost in Another World and Became the Master of a Mansion in a Mirror and Was Forced to Make Children With the Maids!
30 Chapters (Ongoing)
A man with amnesia who was lost in the forest arrives at a mansion in another world. The maid he met at the mansion tells him that he is the last relative of a Count family, and he is obliged to make a child with all the house maids in order to revive the family.
This is how the days of fighting and making children trapped in a house in the world of mirror begun.