1895, Japan. In a small village, Seki is the wife of the litter carrier Gisaburo. Seki has an affair with Toyiji, a man twenty-six years younger her. Toyiji becomes jealous of Gisaburo and plots with Seki to kill him. After Gisaburo has had plenty of sake to drink and goes to bed, the two strangle Gisaburo and dump his body inside a well in the woods. Seki tells the locals that Gisaburo moved to Tokyo to work. Finally, three years later, suspicions...

A half-human and half-Yokai young man struggles to keep peace between the human world and the Yokais.