A young Yuuzhan Vong who died on the eve of her species' redemption from their culture of warfare, Nen Yim was a visionary scientist who played a pivotal role in the Yuuzhan Vong War. Born into Domain Yim and trained as a shaper in the arts of biotechnology and organic engineering, Yim spent her youth aboard one of the enormous worldships that transported the Yuuzhan Vong through the intergalactic void toward the galaxy that was to be their new home. A realist who viewed the universe through a scientific lens, Yim soon found herself at odds with the strict protocols that governed experimentation with her species' biotechnology. Despite the fact that her lover Yakun Kwaad was discovered and executed on grounds of heresy, Yim herself dabbled in heretical practices in a successful effort to save one of the ailing worldships. Lauded yet undiscovered in her heresy, Yim was assigned to Master Shaper Mezhan Kwaad and taken to experiment on a girl who had been captured during the second year of the Yuuzhan Vong species' invasion of the galaxy.