Transmigration: Becoming the Most Unrestrained Immortal Doctor in History

The protagonist, Bai He, activated the Myriad Worlds System and transmigrated into the ancient past.

Bai He transmigrated as one of the Twelve Medical Immortals and was forced to become a citizen of Zhenbei.

This world has many ways of fighting, including martial arts, magic, Buddhism, Daoism, and demonic arts. But to use any of them, one must first become a cultivator.

Ding!

"Escort the princess to Qin Capital to receive three Sword Cultivation Pills. Fail the mission, and the Host will be rewarded with one self-castration!"

Ding!

"Rescue General Wang Tian's wayward daughter to receive one draw. Fail or refuse, and you'll be rewarded with one session of torment at the hands of this System!"

Faced with such a System and such a perilous martial world, how will Bai He survive as a Medical Immortal?

With temptation and danger around every corner, can he uncover the secrets of this world?

This novel and its characters are entirely fictional. Any resemblance to actual people or events is purely coincidental. Do not imitate.