Xu Fu
Xu Fu is said to have reached the top of Mount Kinryu, where he met a hermit and obtained the elixir of immortal life. The elixir is said to have been made from a plant called furofuki, which still grows on Mount Kinryu today. The name "furofuki" is said to come from the word "furofushi", which means "not grow old, not die" in Japanese.