Your New Shadow

You've been possessed by an alien entity sent to invade your world, but it seems confused by your lack of fear. The peaceful ways of your world and openness to its bizarre nature have it questioning its purpose, and wondering if it may coexist here. Is it possible for a being of primordial despair to find joy? Updates: brushed up the context, added instructions, cleared up some plot, added auto-cards courtesy of Lewdleah.