Soki's journey across a Japan suffocating under demonic occupation feels less like a story and more like walking through someone's fever dream of the source material. The animation carries weight the narrative can't, gorgeous backgrounds and deliberate character moments trying to anchor a plot that fractures between scenes like a memory you're struggling to piece together. This works if you surrender to it as pure atmosphere instead of fighting for coherence; that's the only way a one-episode OVA about burning demon trees in the sixteenth century becomes haunting instead of hollow.
Fifteen years have passed since Nobunaga fell, yet darkness creeps back across Japan. Toyotomi Hideyoshi, the new power broker, makes a catastrophic choice: he summons the Genma, ancient demonic forces, to consolidate his grip on the nation. The land descends into chaos as these creatures spread like a plague. Soki stands as humanity's unlikely savior. A warrior bearing the curse of the Oni, he possesses powers most would fear and reject. Rather than hide from his dark nature, Soki weaponizes it. He embarks on a brutal campaign across Japan, hunting down Genma strongholds and burning the massive trees that serve as their anchors to the mortal world. What drives Soki forward is personal conviction mixed with survival instinct. The Genma invasion threatens everything, and only someone willing to embrace his own demonic side can match their power. This is historical fantasy grounded in genuine stakes: a one-man war against overwhelming supernatural odds, told through visceral action and moral compromise. Viewers seeking samurai action with a dark supernatural edge will find themselves drawn into Soki's grim mission.