Tommy: dudes, I have an idea for a larp.
Aidy: go on
Connor: let's hear it.
Tommy: It would be about witches a'la new Sabrina, a coven meeting, modern style, but with a victorian twist
Sarah: sounds cute
Tommy: you wanna know the twist?
Aidy: bring it on
Tommy: there are 2 factions - one want's to talk about the future of the coven and are toward more civilized methods, the other is actually totally possessed by demons and wants the other half to sign a pact with them or - if nothing else works - kill them in the end.
Connor: Cool. Does the 1st faction have any suspicion about what's going on?
Tommy: Many people do, but it's not immediately known
Aidy: Hm, might be a bit unbalanced - the 1st faction might be weaker than the 2nd
Sarah: what about a 3rd faction to balance it out?
Tommy: like what?
Sarah: demon hunters in disguise?
Aidy: So then the duel is between the demons and the hunters and the people are still kinda weak
Tommy: They're still mages they can do a lot.
Connor: I don't think the first faction would be weak - it all depends on the mechanics of the game.
Connor: ytou could just as easily make the demons weak, depends on the design
Tommy: these are good point's though, I'll think about it. Would any of you be interested in helping me write it?
Sarah: I might help a bit. 
Aidy: I have my own project now, sorry
Connor: rules-wise yes, otherwise no
Tommy: cool, Connor, Sarah, I'll add you to my group. Thanks for the feedback y'all
Tommy has an idea for a new larp. It's about witches. There would be 2 factions, one of them possessed by demons. Sarah suggests adding a third faction of demon hunters. Sarah and Connor will help Tommy write it. Aidy is busy with her own project.