Saginair Rangers guarded the interests of the Yonian States, riding winged lions and wielding thunderblades that hurled bolts of thunderfire. Their might was born from the Secret, a latent power of the mind. With the Prime Cipher, anyone could learn the Secret — and keeping the Cipher hidden was the Yonian States’ highest priority.

But power corrupts, and when the Secret fell into the wrong hands, the Yonian States was brought to ruin. In the Last Stand, the only copy of the Prime Code was lost forever.

Or was it?

Generations passed, and the land of Yanakhon has turned into an oppressed slave colony. Rumors spoke of an Heir knowing where the Prime Code had been stashed. But the colonial knight-detectives caught him.

Then one day, Sagiron, a young hunter from the Silwoods, discovers a strange scroll. It turns out to be the last copy of the Prime Code. Overnight, it turns him into a warrior unmatched, and at last he believes he can avenge his father’s death.

But he soon has to set aside his personal vendetta, for the colonial knight-detectives are already looking for the scroll.

This is the best chance to stand against the oppressors. Is Sagiron able to bear the responsibility, or does he have to destroy the last copy before it falls into the wrong hands?

Revealing the Secret to just any ally could cause more harm than good.