Miyamoto, a driven police officer, leads a harrowing investigation into the death of a woman whose internal organs were surgically removed. When conventional methods fail, he enlists the aid of Seimei, a seasoned onmyōji and trusted confidant, their decade-long bond forged through mutual respect. Their partnership unfolds with Seimei conjuring enigmatic spirits—Bisho and Eiko—to assist Miyamoto, marking the start of their unconventional alliance.

Together, they uncover disturbing leads implicating a shadowy perpetrator, though the case lingers unresolved. Miyamoto’s methodical professionalism intertwines with Seimei’s arcane insights, reflecting his practical reliance on blending forensic rigor with spiritual revelation to pursue justice.