Heart of Vigilance Forest, also known as Akodo Mori, was the only major Lion forest, and this lumber went entirely towards military purposes. Within the forest was discovered a shrine, known as Kokoro Nezuban Seido. It was located in the Kokoro province. The nearby village of Rengai Mura was named Brick Village because no lumber was allowed for the peasants to build their houses. Overseeing the forest was the ancestral duty of the Katai family.