In the ninth year of Wude, Li Yuan, the emperor of the Tang Dynasty, was critically ill. Li Jiancheng stepped up to ascend the throne. However, he was afraid of the King of Qin Li Shimin, so he used the real power of the prince to mobilize troops to hunt down Li Shimin. Li Shimin took refuge in Shaolin, so Shaolin was robbed and Grand Master Gangshi was killed. In his last words, he asked the King of Qin Li Shimin to go to Hugangtai in Jiangnan to find Li Shimin. Looking for the thirty-sixth chief of Shaolin's chambers, Ritu sent his troops northward. Li Shimin and the Wagang brothers went to the south of the Yangtze River to find the fifteenth chief of Shaolin's chambers. Emperor Gaozu was critically ill and the prince forced him to marry. King Qin Li Shimin decisively went north to conquer the Xuanwu Gate together with the heroes. Emperor Gaozu was critically ill and King Qin Li Shimin ascended the throne, marking the beginning of the Zhenguan era.