Kaito, a boy who can hear the whispers of the wind and forest, discovers he has been chosen as a rare Listener destined to protect the world's memory. Guided by an ancient tree and the teachings of his grandmother, he learns that a dark force called Oblivion is awakening beneath the earth and slowly erasing the world's memories. As he begins a dangerous journey beyond his village, Kaito must learn to listen to the living voices of nature before Oblivion rises and consumes everything.