Sousuke and Shino press on their quest to locate the eight sacred gems, seeking out the holders left to find. Amidst their journey, the Imperial Church plots from the darkness while a mysterious woman schemes with the gem holders as her pawns. Revelations about the gems' origins unravel alongside the emergence of Sousuke's doppelganger, Ao, who harbors his own intentions tied to Sousuke and his precious gem.