Oak Creek was an internment camp for Japanese-Americans during WWII. Eichen House was one of the buildings within Oak Creek.
Noshiko Yukimura was at the camp and would steal goods for the other prisoners.
The camp's doctor, Dr. Liston, stole medicine to sell on the black market, which left the camp unprepared for a pneumonia outbreak. As prisoners started dying, tensions rose and eventually led to a riot. Many people were killed, but the Army tried to cover it up by burning the bodies and transferring those responsible.
Noshiko summoned the nogitsune to help her exact vengeance for the massacre, but the nogitsune did not possess her body as she had planned.