the Character representing the audience's position in a story
A story has a central character that acts as the focus of the audience's emotional attachment to the story. This Main Character is the conduit through whom the audience experiences the story subjectively. The Main Character may be the Steadfast Character who needs to hold on to his resolve or the Change Character who alters his nature in an attempt to resolve his problems. Either way, it is mostly through his eyes that we see the personal argument of the story.