Heichi Ozashin

Heichi Ozashin was a bushi of the Boar Clan. He and his two older brothers Heichi Goshoryu and Heichi Dammaku were part of a scouting party led by Heichi Jomei, that discovered a remote valley in the Twilight Mountains which was called the Lair. Ozashin was the most cautious and wary, and his skills saved them from attack by Shadowlands creatures.

Three Brothers' Mines
The brothers discovered the economic resources of the plateau, three mines which were collectively known as the Three Brothers. The largest mine, rich in iron, was named after the eldest, Goshoryu; the richest mine with extensive deposits of both iron and copper, as well as occasional small veins of gold, was named after Dammaku; Ozashin's name passed to the valley's small jade mine. Ozashin himself was the first master of the mine. He ordered to create a new tunnel, Ozashin's Relief, connecting the mine to Heichi sano Negura], the castle being constructed by Heichi Jomei, as an emergency escape route.