I have been going over the blogs and if there was a way to get Josh an Omamori of the yaku-yoke variety to that it can ward off the bad spirits surrounding him we need to hurry time is of the essence. It appears Jerry had one, but it disappeared one day and that was when he started to feel ill. These can be requested from a priest of a Shinto shrine and are made for the purpose that is needed.
It looks like Jerry is saying that the person who sold him the sword and the omamari in the first place can be reached at firstname.lastname@example.org. It doesn't quite translate to big tree six, but it is the closest I can get to sounding like "I key rock." 巨い木六. So, I guess that is also the man's name. Jerry thought he could help. Perhaps if we could get another omamari we could save Josh.
Not only would we need to find a new Omamari we would need one specific to the need and attach it to the sword once again, but we need a priest that is able to make one first and to find out where the sword is. As we speak Josh is now heading to a place where there will be a lot of people if he ends up with the same incident as Jerry we will be too late.