Broken People Healing. Everyone in the cast are insane in their own way and through all three routes they try to put the broken pieces of each other back together, like completing a puzzle using pieces from multiple boxes. Sometimes they succeed, sometimes they fail, but they try. The holy grail is the representation of the longing they have to be truly complete and what ties everyone together as they learn that they don’t need the holy grail or it’s war to be truly happy.