Board Thread:General Discussion/@comment-31401828-20170713173239/@comment-27045866-20191002172616

It's already a problem that will solve itself:

4. Question: Your native demonic kingdom will ultimately remain without people, because they will all become mamono and incubus. And, undoubtedly, the number of men for whom you can marry, will soon reach zero, until the boys begin to be born. Will the ruling elite take any countermeasures (besides hunting men in other places)?

Answer: You can go in search of a husband elsewhere or develop tourism and beautification of the kingdom so that people come from outside. There are many different actions to attract people to the right place. Although it is impossible to say for sure, it is quite likely that mammono will start having incuba before the death of the current generation.