In Edo-era Japan, the isolated mountain village of Kagura-no-Sato is cursed when crimson flowers bloom and the Shinigami Wraith returns—a faceless spirit that shows victims their most feared deaths. Haruto, a young shrine attendant exiled from the capital, arrives to restore a broken shrine and escape his past. Instead, he uncovers a forbidden truth: his bloodline is tied to an ancient sacrifice that sealed a demon queen long ago. As children speak with dead voices and demons stalk the forest, the village prepares a final ritual. When the crimson moon rises, Haruto must decide—become the vessel of rebirth, or destroy the curse at the cost of his own life.