Tears to Tiara - Kakan no Daichi

In a fantasy land under the rule of the conquering Divine Empire, the people of Erin seek to revive the demon king Arawn and lead a resistance. The island remains under the Ancient Kingdom, and its Goidelic people attempt to sacrifice the priestess Riannon to break the seal imprisoning him. The ritual fails, but Arawn is resurrected and Riannon survives. Arawn has mysterious, devastating powers and the demeanor of a human. He joins Riannon, her brother Arthur—the battalion commander—and their fighters, including a swordsman, an archer and five magical pixies, in the struggle against the Divine Empire.