Create a Goddess World

What should I do if I accidentally acquire a system that changes the world? How about not having some fun? There are no female ghosts in reality, so I will create female ghosts and bring them into the harem. There are no immortal cultivators in reality, so I will create female immortal cultivators and all of them will be included in the harem. There are no charming succubi in reality, so I will create succubi and bring them all into the harem. In short, there is nothing in reality, so I will create something and then stop it! Enter! Back! Palace! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.