Zhang Cuishan has lived in Binghuo Island for more than ten years. Why is Zhang Wuji the only one?

Because Zhang Cuishan is a disciple of Wudang, he is too pedantic to be flexible. When he was in Binghuo Island, he practiced hard every day except doing some work to make a living. After all, he is one of Zhang Sanfeng's most valued apprentices, and he will certainly live up to his master's expectations.

Of course, there are other reasons why he and Yin Susu only gave birth to Zhang Wuji. He never admitted that his wife was the murderer of his brother. Yin Susu was taught by the eagle, and Zhang Cuishan was the middleman of Wudang. They are both righteous and evil. As a righteous school, Zhang Cuishan must have scruples about Yin Susu's identity. At least he is a noble and decent man. If you collude with people from cults, you will be dissatisfied by Wulin people and even shame Wudang, so you deliberately keep your distance from Yin Susu.

Although Yan Susu was perverse and vicious at first, in order to be with Zhang Cuishan, she tried to change herself and turned herself into a sensible, intelligent and kind person. It would be nice if she had Zhang Wuji with Zhang Cuishan. Why would she want to have many children? At that time, Yin Susu and Zhang Cuishan lived on an island of ice and fire. They have to work every day to support themselves and practice martial arts in order to leave one day.

Zhang Cuishan, Yin Susu and Xie Xun, the Golden Lion King, live together in the cave of Binghuo Island, where it is not bright, so they have practiced martial arts for a long time and have good hearing. Especially Xie Xun, the Golden Lion King, is blind. In order to adapt to the cave, his hearing is very good. So if Zhang Cuishan and Yin Susu want to be very much in love in the cave, they must be embarrassed. Therefore, it is very good that Zhang Cuishan and Yin Susu can give birth to Zhang Wuji. How can they insist on having more children? Besides, they shouldn't have this idea.