In a remote Japanese village, Ayame uncovers a forgotten shamisen and inadvertently summons vengeful yūrei spirits. Haunted by their anguish, she must embark on a perilous journey to appease the spirits and uncover the truth behind their untimely demise. With the ethereal melody of the shamisen as her guide, Ayame navigates a world of chilling apparitions, ancient rituals, and forbidden knowledge, ultimately discovering the power of forgiveness, redemption, and the enduring connections between the living and the dead.