In a Distant Time OVA (2002)

Whisked away to the land of Kyou, Akane learns that she is the Ryuujin no Miko, the Priestess of the Dragon God, and meets the Hachiyou, her protectors. They must defeat Akuram, a demon who wants to destroy Kyou using the power of Azusa, a woman who has the power to absorb human energy. If Akane and the Hachiyou cannot defeat Akuram and bring peace to Kyou, Azusa'a power will destroy the humans.