When one peculiar evening an exploration trip goes wrong, Khachi, a 25-year-old volcanologist, is left frozen and stranded in a world that he comes to learn is the Spectral Domains.
The problem? That the Spectral Domains are nothing but folklore and myths trapped in a location that is people's imagination, yet here he was.
Unsure if the childhood stories of this foreign world are enough to get him back into the world he knows, Khachi finds every means to return. However, along the way, Khachi learns that there might be a more significant reason for his presence in the Spectral Domains. Or that if this new companion, Wen Baojing, a carefree human who claims to want to help him return, has another motive that consistently seems to both put and help Khachi out of danger.