Atlas has been on a journey of discovery for some time. He was asked to leave the monastery in the Rakers where he had been training as a monk. The prior of his order recognized that Atlas had not yet found his path, and needed to venture out into the world to better discover what type of being he would be within the scheme of the world.
There was an acolyte studying at the monastery, Seraphina, a halfling. Seraphina became like a sibling to Atlas, and when he said that he was leaving the monastery to find his way in the world, she joined him.
A short time later, they met up with two wizards, a dwarf barbarian, a tiefling ranger and a gnomish rogue. Such an odd array of companions to be sure, it seemed that the gods were indicating a path after all.
Atlas has recently taken an oath with the Order of the Gauntlet, to meet villainy with cold justice. He has sworn to be armed, vigilant, and ready to smite evil, enforce justice, and enact retribution. This means identifying evil threats such as secretive power groups and inherently evil creatures, watching over them, and being ready to attack the moment they misbehave. (These are always retributive strikes, never preemptive.)