The Succubus Kingdom was not as massive as the Vampire Kingdom. It was much smaller, as the number of succubi was limited due to their naturally low birth rate and the lack of human males.
The Demonic Continent no longer had humans, and the succubus race could only become pregnant by being intimate with another race, preferably humans.
Humans provided them with a much higher chance of conceiving, and because of the succubi's seductive nature, humans were far easier for them to manipulate and become intimate with compared to other races.
And now that the Demonic Continent had not seen a human for a thousand years, the succubus race had gradually declined due to their extremely low birth rate.
"You have to be careful, dear brother. Those sluts will be everywhere. I don't want you to get seduced by them and let them have their way with you." Lily warned Yuan with a sharp look on her face, her concern for him clearly visible.
