Sousuke and Shino continue to pursue their mission of obtaining the eight sacred gems by searching for the remaining bearers. However, the Imperial Church is plotting secretly, and a mysterious woman is devising an evil plan revolving around the gem owners. As they discover the origin of the gems, the enigma surrounding Sousuke's doppelganger, Ao, is also exposed. Ao resurfaces with his own aim that involves Sousuke and his gem.