In a small Japanese village, the lives of the inhabitants are disrupted by a series of strange supernatural events. It all begins when an ancient legend comes to life: it is said that an ascending dragon protects those who dare to approach the sacred river, but also punishes those who dishonor its name. The story follows Hiroshi, a young and skeptical academic who arrives in the village seeking proof to dismantle the local myth. However, he soon finds himself immersed in a world of fantasy and terror that defies all logic.
As Hiroshi investigates, he discovers that the inexplicable events are related to a series of disappearances and spectral manifestations that terrify the residents. By his side is Yuki, a village girl with a special bond to the dragon, who reveals the hidden truth behind the legend through tales and visions. Together, they must confront both their fears and the disbelief of the village adults, who cling to their traditions.
As the dragon awakens, time runs out and the fate of the village rests in the hands of Hiroshi and Yuki. The film intertwines the supernatural with human drama, exploring themes of faith, respect for culture, and the impact of skepticism. It all culminates in an epic confrontation that will test their courage and forever change their understanding of reality.