Harem, 1 wife and several lovers, he needs to restore the grandeur of the house and judging by the quality of medicine, he needs lots of children so at least 1-2 live to adulthood.
It's not necessary, although the world has some beauties, just put a few things between the lines of the story, this will be more elegant than scenes that seem taken from pornography.
just so what you think is necessary, he definitely needs a harem but there's no need for any explicit content of that degree believe me, we have enough on this app