It's about friends living in a cabin in the woods! Nobody living here is even human-- and the ones that were, abandoned that nonsense long ago. There's also some kind of political and cosmic conflict brewing just beyond their doorstep, in the magical forest lands of Kellwood, but they're trying not to be involved in all that. Too bad some folks are just going to insist on dragging them into it whether they like it or not!

Purgatory is a tower that offers a group of convicts a second chance at life, if they can survive the climb. But who built the tower, and for what purpose are they holding this "contest"? The answer lies at the top, if they can manage to reach it.