Kanon was kidnapped by the successor of the Heavenly Emperor, Sieg. Once lost to the shadows of history, the secret of the "Eighth Princess" is revealed! The other princesses, confined to the Heavenly Castle, learn about the soul of the Heavenly Emperor that resides within them, as well as the true identity of Lloyd. Once the final resting place of the Heavenly Emperor and the Guardian Knight, the greatest battle and most perilous encounter unfolds within the halls of the Heavenly Castle! All secrets are revealed, and the world veers towards chaos! This is the eleventh installment of this popular fantasy series!