Ahsi Yim was a female Yuuzhan Vong and a member of the species' shaper caste, who experimented with the science of biotechnology to aid the Yuuzhan Vong warriors in their conquests. Yim served during the Yuuzhan Vong War, in which her race invaded a galaxy in order to conquer its worlds and convert its inhabitants to the Yuuzhan Vong religion. Following the conquest of the planet Duro, Ahsi Yim worked on the terraforming of the world. The shaper found, however, that the orthodox protocols that governed her caste were severely outmoded and lacking when it came to the task at hand. Rather than slavishly obey the strictures, Ahsi Yim practiced heresy by adapting the protocols to suit the needs of the assignment. With her methods undiscovered and her success lauded, Yim was escalated to the ra