Born into a long line of knights, Fia is determined to become a knight herself, just like all her siblings. But a brush with death awakens memories of her past life as a Saint—a woman who wields rare, powerful healing and protection magic—along with the ability to use that magic herself! The downside is that Fia also remembers her past life's untimely death, and the danger she will be in if anyone finds out what she really is. She vows to stay on her knighthood path and keep her powers a secret forever! But how can she resist using her newfound powers when they're just so useful?

The yellow-speckle fever is running rampant in Sutherland, and the townspeople are suffering. But even as the disease grips the populace, they are still too distrustful of the knights to accept their help. Maybe what they need is some good old-fashioned fairy-tale magic. Can the "Great Saint" get through to them and provide the cures they need—healing both the disease and the scars of the past?

Now back with the First Knight Brigade, Fia heads to Sutherland with its lord, Captain Cyril. Fia remembers Sutherland fondly from her past life's memories and is excited to go—but tension is high between the captain and his subjects. Worse, the people of Sutherland become convinced that Fia is the reincarnation of the Great Saint—which she is, of course, but there's no way they could know that! Now Fia will have to pretend that she's pretending to be the Great Saint, all while keeping her true identity hidden from Captain Cyril and the other knights!