/////The Fetish Priestess. Encounter at the lake after some kind of condition. Count number of cultists+zealots beaten? Numbr of days after unlocking cultists?
A structure appears overlooking the lake. From a faraway glance, it looks like the building is still under construction, with a second floor and the beginnings of a steeple all scaffolding and wood beams. There's a sense of sanctuary about it, as though it will protect you from outside dangers if you enter, and you're already standing at the open door before you've recognized the sensation as an illusion. 

Many fetish cultists and converts kneel in prayer inside, with the only person to have taken notice of you being a woman on an elevated platform at the end. She speaks to you in a welcoming tone. [say: Strength is found in numbers. Fight the demons of this realm with us, or find precious safety within our walls, child.]

Her robe is different from the others, being mostly white, rather than blue, and its trim being a rusty red-orange. Her shoulders are exposed, too, the robe only staying on because the collar swoops up to cover her neck, as if it were a slave collar. Below, the fabric parts around her large, melon-sized breasts, and then constricts tightly to her skin the rest of the way to her womanly hips, at which point it hangs freely to the floor. Besides her somewhat exaggerated proportions, she does appear to be a light-skinned human, with tresses of brown hair that do well to frame her serene face.
[Fight] [Question] [Join] [Leave]
////Fight. tooltip="Now's your chance to topple this cult at the source!" Add a bunch of lust, reduced by lust resistance. Not sure how much. It shouldn't one-shot anyone from 0 lust. 
You raise your [weapon] and ready an attack, receiving a sudden and mind-numbing amount of fetishistic imagery passing your psyche. The flurry of sensation is too dense to parse, but you realize every person in this building is now intensely focused on you. [if (lust is maxed) {With so many assaults at once, you're overwhelmed before the fight has even begun. 

[say: Rash and impulsive. You need the teachings lest worse things befall you. Lest it be a [b:demon] that befalls you.] {go to loss scene}|The priestess waves a hand and the assault ceases.

[say: Impulsiveness will be your demise if not corrected by our most holy Fetish Cult.] She grabs hold of a staff behind her and takes on a commanding pose. [say: You will be permitted to fight, to recognize that you are not capable of resisting the demons without joining us!] {fight}
////Question. tooltip="She speaks with more sense than any other cultist, perhaps she can explain things better."
You aren't unfamiliar with her cult, but the fanatical members you've seen so far haven't seemed in the right mind to speak with you. Taking the chance she may be able to explain what's going on, you voice your questions about the cult and their place at the lake.

[say: We, the Followers of the Fetish, bring down the vile, corrupt monsters of this realm using their own tactics against them.] Her voice comes out deep, like a leader or a preacher giving a speech. [say: The demons that plague this world turn the lusts and desires of people against them--but we have found techniques to do the very same back! Nay, ours is better, as one who empties their mind of all but the teachings are able to channel the tension those demons lay upon them as yet more power.] 

The members in prayer raise their heads and cheer in perfect unison, [say: Flourish with fetish!]

That power of theirs does sound useful.
////Join. Tooltip="You may not need to fight this cult, they fight the demons as you do."
You are the Champion of Ingnam, charged by your people to defeat the demon menace threatening your home[if (factory cleared) {--or so you were lead to believe, but the demons are no less your enemy even if you were lead here on false pretenses}].