Wuzhiqi

Wuzhiqi is a Xian who was one of the founders of the Philosophy Foundation. She's also one of the three involved in the creation of Ergo long ago. She was formerly one of the Ten Officials of Summit Court as an extra eleventh member. As Wuziqhi is an ancient Mystery, she cannot be harmed by magecraft from the modern day.
Although the mythical Wuzhiqi was a male and this one appears to be female, it is actually only her remote body that is female.