During the troubled times of the Republic of China, Rong Shuo, as a retired frontier general, dealt with various forces to complete espionage missions, while accidentally breaking into an ancient secret realm hidden in the crevices of mountains and rivers. He had no companions, so he used the powerful martial arts he had trained on the battlefield to expand territory in the secret realm, clearing out the entrenched monsters and entrenched forces, and eventually became the overlord of the secret realm, while guarding the bottom line of the mountains and rivers in troubled times.
