Orvin has trained for years to earn a place in the Vault of Equilibrium. He is inducted as an Erm-Savann and, over time, proves himself in loyalty, resourcefulness, and skill until he becomes a key confidant of the Vault's leader. The leader entrusts him with a critical task: locate and collect four magical crystals, each guarded and distant, that are needed to summon the legendary flying ship Beltion.