Red River is about a fifteen-year old Japanese girl named Yuri Suzuki, who is magically transported to Hattusa, the capital of the Hittite Empire in Anatolia. She was summoned by Queen Nakia who means to use Yuri as a human sacrifice. Yuri's blood is the key element needed in placing a curse upon the princes of the land so that they will perish, leaving Nakia's son as the sole heir to the throne. - from wikipedia