It is an interesting perspective and it should make for some excellent drama in the story. You have created a clear premise for yourself, so now you should think about how he could change over the course of the story—his character arc. I understand that this might be difficult as you do not know what the story is, but you should ponder on some possibilities and a few ways in which Thael could change. A typical classic change is that whatever the character thought before the story is either enhanced or nullified by the adventures of the story.