Emmett is the love interest of the main character Nesryn. 

He works as a guard in the town of Sevalessa. 

He comes off as a stoic loner, but he is a teddy bear when you get to know him though he would never admit it.

He took care of his little sister Xena from age 10-16 before she moved to live with one of their aunts. It isn't said directly why this is the case but the death of his parents is alluded to in the series.