Why did Gongsun Sheng leave Liangshan first in Water Margin?
In fact, Gongsun Sheng's greatest contribution is to assist classical people to plan and outwit the birth program. This fund has laid a solid foundation for Liangshan Group to start a business. So Gongsun Sheng is also the leading core figure of Liangshan. However, it was this prominent figure who left Liangshan's team at the most glorious moment after Liangshan's harness.
In fact, the main reason is that Gongsun Sheng's route is quite different from that of Song Jiang. As we all know, Song Jiang wholeheartedly wooed and served the imperial court, claiming that he was thinking of all the brothers in Liangshan. However, Gongsun Sheng thinks that since he has raised the banner of doing good for heaven, he should make Liangshan bigger and stronger and do something vigorous. In fact, his idea is completely different from Song Jiang's route of harness. So the relationship between Gongsun Sheng and Sung River became worse and worse after Sung River was wooed. Different ideals will naturally lead to many differences, and Gongsun Sheng seems to have noticed the feeling that his rights were raised by Song Jiang.
And at that time, Liangshan's brothers were actually divided into two gangs, one headed by Song Jiang and the other by Lu Junyi. Although the two groups seem to be in harmony on the surface, they are clamoring for strength behind them. Gongsun Sheng, however, is an expert in politics and doesn't want to participate in the struggle between the two groups, so he is isolated, and the core figures have existed in name only.
So after Liangshan army conquered Liao successfully, Gongsun Sheng resolutely chose to leave. In fact, at this time, choosing to leave is the best reality. At that time, the Song family could not say anything. Gongsun Sheng worked for Liangshan for half his life. Along the way, there is no credit and hard work. For sung river and Liangshan, it is already the last straw. So Gongsun Sheng said goodbye to them on the grounds of serving his mother and became the first person to leave Liangshan.