A prequel to the previous Yami no Koe games.

Five people have come to a fishing village. Ikegami Kiyohiki, a professor. His impatient wife, Kumiko. And three students, Minamida, the psychic Miki, and Eri who senses spirits. They finally find a boy, Tachikawa, willing to ignore the local legend of a sinister island and take them out in pursuit of it for their research.

They set sail for the island and land successfully, but the mistress of a mansion on it, Sayoko, prevents the boat from leaving so she can play with them. As the six search for answers, she begins to influence them.