A loyal foe is a rather sad story for most of its time. The main character, Rex, goes through a lot of pain, both physical and emotional, in immense quantities. He is betrayed and loses nearly everything he loves, he gets different types of torture done to him, and challenges meet him at every turn. However there is hope and happiness in this story as well, and funnily enough none have more than Rex. Despite losing the things and people he loves he always holds out and never bends in his ideals or values. While he does grieve, he also finds reasons to love life and keeps on living it, never breaking.