Centuries after the defeat of Dark Dragon in "Shining Soul", light had become too strong, opening the way to a resurgence of darkness. A crystal in the possession of King Marcel and Queen Yvonne of Klantol, which throughout the story reflects the current balance of light and darkness, turns from shining to cloudy. An alchemist named Gillespie, a member of a dark order, the Chaos Knights, worms his way into the friendship of King Marcel's most trusted knight, Deatharte. Gillespie then disappears, leaving something called "the forbidden fruit" with Deatharte. Driven by curiosity, Deatharte eventually eats the fruit and is corrupted by darkness.