In a Shinto horror World Yokai reign supreme. The mouth of yomi has been open for a hundred years, and the imperial capital of humanity has fallen now known as the Sunken Palace. A council of nine Yokai rule the world. Kuuna being the last shrine maiden of Shiro-Yama has become the hunted target of the council. Her holy light which resides in her Shirikodama would ascend a wicked yokai into a Kami of Darkness, like Yomi. Kuuna will rely on her friends, like Kirin, to survive and ultimately confront the elder yokai.