Fu Xu

A Taoist (sorcerer) who served China's Qin dynasty. After Qin Shi Huang ordered her to find an elixir of immortality, she assembled three thousand young men and women and set off for Japan. Though she reached her destination, she never did manage to return to China. Legends of Xu Fu endure in various corners of Japan to this day, where she is said to have introduced pharmaceuticals, ceramic techniques, and more.

(Source: Fate/Grand Order profile)