Zhao begins seeking even more power; the power to acquire anything. He throws himself into researching black fire, the infinite power source discovered in the ancient Kuican ruins. The oblivious Chen promises she`ll promote Zhao. Meanwhile, Yin is worried about Ning. Concerned for Yin, the rebels suggest she become their sworn sister so that they may become family and fight together. However, their father Xiang Chu doesn`t think it`s a good idea.