This quest is not available in game.
Speak with Godrick Farsan in the Temple of the Damned.
A succubus is a devourer of souls, destroyer of hearts, tempter of men. A creature of profound evil and of singular mind.
It cannot be brought into our world without a stimulus.
Thus we use its own strength against it. With the hearts of good men, pure men, loving men, the succubus will be unable to resist, and will cross into our world. Then you can dominate it, and make it your own.
Speak with my assistant, Godrick Farsan, within the Temple. He will help you find your bait.