Resets the turnAmount and hasBeenCriticallyInjured flag for every player at the start of every round. In the vanilla game, these values persist after every round and even through death. For more information on the fear mechanic, visit https://lethal.miraheze.org/wiki/Ghost_Girl#Mechanics.
Everyone needs to install the mod for it to work. You'd think the game would just take the fear data from the host but noooooo.