This story takes place in a dark fantasy setting inside the border of an ever expanding empire, creatively called The Empire. You play as a young man who was taken from his home as a baby and placed in a sort of magical super soldier program.
This story can be very long assuming you're not dying. Years pass and your surroundings will most likely change. You may very well live a lifetime in the story.
You can technically "win" by getting one of the epilogues.There are 8 epilogues in total and many dead ends.
There are also several points in the story where there are side-chapters that lead to more background information on various people, places, things and events. While not completely necessary to understanding the story, they do give you more insight into it.