Who is Wang-mu, Qing-jao's Secret Maid from Xenocide and what is their importance?

Raised among the serving class, Wang-mu truly is a gem. She is bold enough to manipulate her way into the position of being Qing-jao's secret maid and hugely instrumental in solving the disappearance of the Lusitania Fleet. Wang-mu's oppositional stance to Congress and questioning of the gods eventually lead to her dismissal as secret maid, but Han Fei-tzu retains her as a servant in name but "daughter of his heart" in practice. It is Wang-mu who feels the most guilt for Congress' decision to terminate Jane and works tirelessly to help her master oppose Congress and also aid Ender's group on Lusitania. Seeking a fresh start after she and Han succeed, Wang-mu leaves Path to explore for new worlds suitable for bugger and pequenino colonization.

Si Wang-mu is unique among on the colonists on Path. She carries all the intellectual enhancements of the godspoken but does not have their predisposition to OCD. Interestingly, her name translates to "Royal Mother of the West" which becomes true in a sense when her DNA becomes the basis for a genetic overhaul by the Lusitanian xenobiologists of all the inhabitants on the planet Path.