Carrying out the will of the gods, they act as the gods command. These brave adventurers travel between planes, exploring one fantastical world of magic after another. They are visitors to each plane, perhaps leaving a lasting mark on its history before departing without a trace. They are the Plane Envoys, a profession with the grandest battlefield of all! Hell, Heaven, the World of Warcraft, and the Elemental Realm: these four great Plane Envoy factions, along with countless other large and small factions, make up the world of the Plane Envoys. Across the endless void of the universe and its countless planes, they climb step by step toward the peak. Their journey may be fraught with hardships and obstacles, but it is also deeply fulfilling, offering the chance to achieve their full potential.
I found a treasure! Worth checking out.
It's pretty good; the timeline and storytelling are both very concise.