Human

Humans in the world of Himeros are, well, human. They live about 70 years plus or minus a couple decades, and are prone to emotionally-charged fits of irrationality. Unlike elves, most humans don't know how to use magic; those that do are witches and warlocks who draw their powers from their contact with The Shift. (Unlike mages, who manipulate the natural elements of the environment.)

The big thing to remember about humans is that they only just clawed their way to the top of the social food chain. To make a long story short, everyone used to live in the nation of Thiese, which was ruled by a corrupt elven theocracy. When opportunities arose to settle new lands to the east, a good chunk of the non-elven population peaced out; this came to be known as The Thiessan Exodus. The majority of those who left settled the nation of Novera, which is where we find ourselves today. Of course, it was a struggle to modernize and catch up to Thiese's magically-nurtured high standards of living with few mages at their disposal...but then some guy invented the steam engine on a drunken bet.

We're skipping over a lot from here—sanctions, tariffs, a hot war, a cold war, a drunken slapfight between heads of state at an international peace conference—but the important thing is that the advance of technology has placed humanity at a curious crossroads. Now that they're getting a taste of the privilege that has kept them under elven thumbs for centuries, some are remembering their history and using it to fight injustice in ways big and small. Others, however, just want to wield power the way it was wielded against them.

(All this may or may not be important down the line.)