Kurtis, captain of the Thirteenth Knight Brigade, regains his memories of serving as the Great Saint's personal knight three hundred years ago and insists on serving Fia again. With his and another saint's help, Fia works to create a cure for yellow-speckle fever, the disease that's ravaging Sutherland islanders once more. But in doing so, she risks revealing the truth about her past self and putting everyone in grave danger...