It stars Yang Zi, Ren Jialun, Mao Zijun and Li Man.
[2] Zi Xuan is the disciple of the Green Emperor and he specializes in medicine and is cultivating to become a deity.
Over the course of time, Xiao Bai gathered enough cultivation to transform into a teenage human girl, and she eventually grows closer to Zi Xuan and developed a strong romance with him.
While trying to find a herb that would save Zi Xuan's life after he is injured, she accidentally breaks a heavenly seal at the elixir chamber of Mount Jiuxi and releases an ancient beast, the black water dragon, from thousand years of imprisonment on the human world.
Zi Xuan, now reborn as Xu Xian, who is the chief of the Yao Shi Palace (medicine valley), remembers nothing of his and Bai YaoYao's past.