Senjir is from a small outpost that is not even worth pointing at on a map. At an early age he proved to have some early proficiency with outdoorsmanship and hunting, which earned him the attention the travelling representatives of a prestigious military academy at a young age. He was recommended to enroll for training when he came of age, and decided to pursue that career when he finally was.
With no way to get to the far-flung academy by himself, Senjir joined up with a travelling circus got him to his destination in a very roundabout way. Upon reaching it, he was summarily expelled after showing up to a scouting drill in high-visibility colours, being cited as "A steady hand with absolutely no military discipline, and either lacks to capacity or willingness to learn."
He is currently transient, moving from mercenary company to company to sell his unorthodox services.