Return To The Soul Gate

In 1939, the Japanese army dug 800 meters underground under the center of "H City" to build a huge fortification fortification that was appalling. No one knew what was hidden inside. Many years later, a mysterious exploration team wearing white robes on a mission was ordered to conduct an exploration of the area. The mission code was "Rashomon". They finally came to the bottom of the underground fortifications left by the Japanese army with the most advanced equipment at the time, but they discovered a terrible secret that greatly subverted human cognition...