David finds a train ride to visit his grandfather takes an unexpected turn. Transported to a world beyond death, David discovers that he may be the key for preventing tyranny in the Celestial World. To help with his quest, David is given a Celestial Orb by a young woman named Albireo. The extent and source of its power is tested as he undergoes a number of adventures and challenges. Forming an unexpected friendship, the quest becomes personal as the orb's power increases.
As David meets the Time Prophets, Koo She, the Caputs and the Pleiades, David begins to realise the significance of his quest to all of the spirit worlds, and also to his life back on Earth.