Percival has spent his entire life with his grandfather on God's Finger, a secluded refuge perched high above the clouds in a valley of mist. Though he cherishes the uncomplicated existence, he secretly craves adventure beyond the horizon. His world shatters when an intruder—who shares a startling link to him—rips away everything he has ever known.
With nothing left but the pursuit of justice and redemption, Percival departs alone to chase the one who stole it all. Throughout his trek, the sheltered youth learns that ordinary life holds many mysteries he had never imagined. Fortunately, he encounters a band of companions who aid his progress and share their own stories—yet how will they respond when they learn of Percival's fate and its tie to the world's impending end?