Down the rabbit hole!
As they fought to defeat the enemy, the Byakkotai had to retreat. They were fighting in familiar territory. What was once their playground was now a battlefield. They headed for a secret passage way through the mountain. And that is how they reach ed Iiemori hills. Still to this day, the secret passage way remains. It is but a hole on a cliff. But it stands as a testimony of the story that unfolded.
There are many sights to see between the secret passage way and the memorial monument. The most striking one is perhaps the round temple. In which you go up and down without ever changing direction. It is but one straight path!