In fact, after Shi Biao came to power, many generals left Wagangzhai except Qin. Mainly because these people think that Shi Mi is unkind and unjust and does not deserve their assistance. So after the lack of these generals, Wagangzhai declined more and more, and finally Shi Biao was forced to surrender to Li Shimin. In fact, Shi Biao is really talented, but he is also ambitious and narrow-minded.

At the beginning, the ruler of Wagangzhai was actually the hero of the time, Zhai Rang, who was very loyal to him, so many generals were willing to work for Wagangzhai, including Qin and Cheng, so the strength of Wagangzhai at that time was the strongest among all the uprising troops. Later, Shi Biao was chased by the imperial court, but he had no choice but to take refuge in Wagangzhai. After coming to Wagangzhai, Shi Biao actually set up his own troops to replace Zhai Rang.

Later, some people in Zhai's family saw that Shimi was up to something, so they wanted to kill Shimi in advance, but it was leaked by Shimi later. So Shi Biao planned to kill Zhai Rang first, and then carefully planned a banquet in it. Zhai Rang himself didn't have much scheming, thinking that Shi Biao just invited him to dinner. Later, Zhai Rang also got drunk during the dinner. Shi Biao killed Zhai Rang and Zhai Rang's whole family when Zhai Rang was drunk. At this time, Shi Biao became the actual ruler of Wagangzhai.

But after killing Zhai Rang, many generals inside refused to accept this statement, including Qin's. Because these people think that Zhai Rang took Shi Biao in when he was desperate, and now Shi Biao has killed Zhai Rang and his family in turn. As the saying goes, bitter, so Qin Baoshu resolutely left shi biao. Without these excellent generals, Wagangzhai was quickly destroyed.