A long time ago, during the rise of the Yamato ethnicity and settling of the nation of Japan, the region of Suwa was said to have held its own unique civilization and appeared to have first discovered and cultivated the Divine Elixir. As the civilization's edifices and habitations now remain only as ruins, it can be assumed that the legendary civilization saw a sort of cataclysmic downfall, and its knowledge of the elixir was then passed on and fiercely protected by the Sanada Ninja clan.