What is the Final Fantasy Five Four Job Fiesta?

The Final Fantasy Five Four Job Fiesta (FF5FJF) is simple!
Log in via Google and register for a run. You get four random jobs from Final Fantasy V. Then they attempt to complete the game using only those jobs.

Who runs the FF5FJF?

RevenantKioku.
But let's say your host is Gilgamesh over there in the corner. Make sure to say hello!