Please answer the following question about this movie plot. If it's un-answerable, please output "No answer". Question: who combine efforts to defeat and kill Ji Wushuang? Movie plot title: The Bride with White Hair Movie plot: A narrative voice explains that in the Shun Chi years of the Ching Dynasty, the Emperor of China had fallen gravely ill. In pursuit of a legendary rose, which blossomed once every twenty years and which supposedly has the power to restore life to the nearly dead, an envoy was sent to Mount Shin Fung, where the flower was to be found. This envoy, and his three companions, arrive at the mountain, where a man can be found standing watch over a flower that is nearly blossoming in the snow. The envoy bows and addresses this man as Master Cho of Wu Tang, but he doesn't respond. They explain their mission, which prompts him to ask about the time -- or rather, to ask what year it is. The envoy answers that it is the tenth year since the establishment of the Ching Dynasty. Master Cho expresses surprise that it is truly that long, and tells them that they can leave. The envoy attempts to bribe him with a reward, and is angrily rebuked. His three companions arise and leap to attack Master Cho, who leaps up and defeats them easily. The envoy himself attacks, and lasts somewhat longer before he is knocked back. Bleeding heavily, the envoy asks who could be so important that Master Cho would save the flower for them instead of for the Emperor, and then exsanguinates messily. Master Cho resumes his vigil, and the narrative voice (which is his voice) explains that he is saving the flower for a woman, for whom he has been waiting here for a decade. He wonders if she knows what he's doing ...Over scenes of a blacksmith's workshop, Master Cho (or, to use the name of his youth, Cho Yi Hang) explains that he was the student of Master Tzu Yang of Wu Tang, the Joint Chief of the Eight Big Clans of China, which are the only ones whom the Master considers to be worthy of the name. The Master advises him to always remember that good and evil were like oil and water; this is a familiar lesson to Yi Hang, who is more interested in playing with the grasshopper he's found in his hand. The Master then asks whether Yi Hang has mastered the...
A:
Zhuo Yihang and Lian Nichang