Priestess of Death

"You'll rue the reason of your birth!"

- Da Siming, or the Priestess of Death An unnamed female, holding the title of the Priestess of Death (simplified Chinese: 大司命, Da Siming, literally means "the Senior God of Life") which is one of the Five Elders of Yin-Yang Theorists, acts as one of the main antagonists in the mainland Chinese animated series adaptation of The Legend of Qin.

Overview
The Priestess of Death was created specifically for the animated series franchise and did not make an appearance in the original novels. Her franchise-wise debut was the first movie of the series, The Flying Dragon. She first appeared in the TV animated series as the main antagonist of its third season and then a supporting villain in later entries.

The Priestess of Death is a cruel and devious enchantress who hunts and kills anyone who stands against Emperor Qin Shi Huang, the First Emperor of China. Prior to the Emperor unified China, the Priestess was also the murderer of Prince Dan of Yan Kingdom, who was then the leader of Mohists as well as the mastermind of Jin Ke's assassination attempt.

Amongst the Five Elders, she represents the Element of Fire.

Season 3
The Priestess of Death first appeared in the second episode of the third season. She disguised as a Mohist to attack other Mohism supporters inside the valley beside the City of Trap, before poisoning Prince Dan (who was revealed to be Gao Yue's father and the Great Mohist) with the Curse Seal of Fear. Since the curse had no cure, the Great Mohist chose to die together with the Mohist's City of Trap, which had collapsed under the attack of Yin-Yang Theorists.

When the Mohist's City of Traps fell into ruins, the Priestess of Death stood far away alongside the Priestess of Birth, watching the City of Trap destroyed. The Priestess of Death then returned to Yue Shen, reporting to her about the situation, while the Priestess of Birth watched silently beside her.

After the City of Trap's downfall, Jing Tianming took over the mantle of the Great Mohist. He followed the Anti-Qin Alliance and retreated into the region of Qilu (nowadays' Shandong Province) in order to join forces with the theorists of Confucianism, inside the city of Sanghai. The Priestess of Death and the Priestess of Birth arrived there soon afterwards. They greeted the arrival of Yue Shen and Yun Zhong Jun alongside the forces of Qin Empire, plus Xing Hun.

Later, Tianming and Xiang Shaoyu were having fun in Sanghai until they discovered that they were too late to get back into the city during its night curfew. Then, they were chased by the Priestess of Death, who led a group of Qin soldiers and Yin-Yang priests to attack them. Thanks for the help of Shi Lan in her disguise, Tianming and Shaoyu escaped from the Yin-Yang theorists.

Trivia

 * 03087bf40ad162d9488f34ba19dfa9ec8a13cd37.jpg Siming is the only elder of Yin-Yang Theorists that had no definitive backstory so far.
 * In English translation, she is referred as the Priestess of Death, while her partner Shao Siming is referred as the Priestess of Birth.
 * Like her collegues, her title (in original Chinese version) came from a poem written by Qu Yuan, a patroit poet in Ancient China.
 * In the live action TV version's continuty, Da Siming was presented as a male character.