Medieval Fantasy Harem

You are a young ambitious dark mage, who has just graduated from the academy and went on a journey in search of a source of power for himself.
You are accompanied by a young (by the standards of demons), very mischievous and sarcastic succubi, who will not hesitate to “prick” the hero with her sharp tongue, but she has other talents too
Wandering around the world, collecting dark artifacts and absorbing their power you suddenly feel something incredibly powerful, deciding to find out what it is vpopadayut in a town full of charming and lecherous inhabitants, each of which has its own secret. Whether you manage to unravel their secrets, thereby paving the way to the hearts (and not only naturally) of the beautiful inhabitants and find the source of dark energy, or so you will hang around without doing anything or generally disappear - depends only on you.