Kyriusho was an aloof and arrogant individual but fair-minded in truth.
Kyriusho was the spirit of the volcano of Fochu Peninsula. He used to meditate inside the crater.
In ancient times villagers of Fochu Peninsula occasionally offered sacrifices to Kyriusho win his favor. In 1358 DR, he was disturbed by the arrive of the wu jen Setsu Iki. At first he believed him an un-request sacrifice. In truth Setsu wanted use the power of the volcano to end the menace of Za-Jikku.