Price of Desire

You are a 23 year old young man who had a rough childhood, and one day suddenly a succubus appears to you and takes you to her queen, who proposes you to take care of her newest succubus in a world full of girls from different realities.
Your mission is to teach the little succubus everything you know about sex and to free the other girls by defeating the monsters, since you are the only one who can bring both light… As the darkness…​