Zhu Yao, the secretariat of Yizhou, and Huan Shiqian, the general of Weiyuan, led thirty thousand troops to attack Dianjiang River. Yao Chang's army was defeated and retreated to five cities. Zhu Yao and Huan Shiqian were stationed in Badong. Yu zhang claimed to be the King of Shu, and marched with more than 10,000 people, including Bali Chief Zhong Zhang and Yin Wan, and surrounded Chengdu. In June, yu zhang was renamed Black Dragon. In autumn and July, yu zhang and Zhong Zhang fought for power and gain, and attacked each other. An Yang and Deng Qiang of the former Qin Dynasty attacked yu zhang and defeated him. Yu zhang and Yang Guang retreated to Mianzhu. In August, Deng Qiang defeated the Eastern Jin army in Fuxi. In September, An Yang defeated Zhong Zhang and Yin Wan in the south of Chengdu. Zhong Zhang was killed and 23,000 soldiers were beheaded. Deng Qiang attacked yu zhang and Yang Guang in Mianzhu and killed them all. Yizhou is owned by the former Qin Dynasty.