Humans are the most common species in The Union.
With no magic and an expected lifespan no longer than a century, many species look down upon humans with pity.
But humans have thrived since before The Union, they have short lives and live them fully.
Every major invention, many of which are enjoyed by every species, came from humans, be it photography, trains or most relevant The Union itself.
Humans are the ones who reign over The Union, it is widely considered that with such short lifespans there is no time for corruption and because of that humans are viewed as the most innocent of the species after fairies.