As erotica, this is shit. The story and art both fail to emphasize anything that people who like mind control porn would generally enjoy.
There is the usual generic isekai lack of any real conflict, but the writing and art downplays the fucked up nature of the situation so it is just boring...
"I am the only one capable of giving grandchildren to my parents"
1. this sort of thinking is kind of gross
2. that is never a huge problem in BL manga
So is there any point to the woman in charge being a monster or is it just a terrible excuse for sexy garbage for people who want to fap to mindbreak shit