Witch

Witches are Humans that have formed a pact with a Succubus in exchange for power.

A witch sacrifices a baby/child for the succubus (a pure soul) in exchange for a favor.

They become bound together and receive special powers from the succubus.

The more powerful a succubus is, the more power the witch will acquire.

But there are levels to this pact: level 1 - the witch retains her free will but receives only the favor + can drain energy to maintain their looks, and she must keep the best interests of the succubus and clan at heart level 2 - the witch partially loses free will, but gains more magic and power, and is now capable of draining with her other holes, like a succubus level 3 - the witch become almost a succubus, her magical power and mana reserves skyrockets, but her free will is gone, completely submissive to the succubi