Rekishi Kaidan Fureta!! Nanshū-ō no Kokorozashi - Saigō Takamori -.

A horror-documentary capturing paranormal phenomena caused by wandering spirits that continue to drift through the spirit world. Using a special device called a "sensor box," the journey follows the footsteps of Saigō Takamori, starting from the ruins of Hitoyoshi Castle. However, mysterious events that occur there remain unexplained, and experiments at Saigō’s final stronghold begin...