12 demons of sadness?

[Jeff]

I wanted to unlock the rest of the gear I was missing, so I did a curse of sadness in the main world.

I got to 10 sadness to get an army of imps or whatever to show up, but I had 20 or so things to sell when the day ended. I just sold some milk which created more sadness.
https://steamcommunity.com/sharedfiles/filedetails/?id=3018512076
I ended up generating 12 demons of sadness and some other stuff the next day when the fight was still going, which was more than I expected. Wouldn't I need like 20x12 sadness for this to happen? I didn't have close to this...

[M]

Same here, I couldn't figure out what exactly defines the number of enemies in the group per villager, but you get a group per villager whose sadness is not countered by happiness. You can easily get a number of enemies that wipes out all your sad villagers. In order to get the remaining gear, having only one or two sad villagers per turn should be good.

[Jeff]

I think each food item you sell during that phase causes a recount of all your sadness if it wants to make a new demon or not.

So 1 milk sell = 1 demon, if you have at least 19 sadness