What else can he do?

Duan Yanqing's life is to live for revenge. Although the source of hatred was duan zhengming's seizure of his throne, in fact, Duan Yanqing had no interest in becoming emperor and governing the country. He was not even like Murong Gusu's family, who was bent on restoring Dayan and creating a dynasty of his own. He just wanted to add a little blockage to the Dali Duan family (now).
Duan Yanqing's situation is a bit similar to Xia Jingui in "Dream of the Red Chamber". With Aunt Xue's easy-going, if Xia Jingui asked to manage the house like Wang Xifeng, she would probably not be rejected. However, Xia Jingui's interest is nothing more than fighting with her husband, bullying concubines, idle "gathering people to fight cards, rolling dice for fun", and loving to eat is not "not tired of eating fine and not tired of fine", but likes to "fry charred bones and drink". This kind of person is energetic and energetic, but it is completely destructive.
Duan Yanqing also did not have a constructive skill. With his high level of martial arts, he had been wandering in the rivers and lakes for so many years, only gathering such a gang as the "Four Evil Men", and still attaching himself to the Western Xia Yipintang and not having his own independent organization. A guy like this is handing over dali to him, can he manage it well?
Duan Yanqing himself may not be unaware of this. Long before he met Dao Baifeng, he realized that "Duan Zhengming was kind and benevolent to the people, quite popular, and everyone supported the people of the country, and no one would remember the former crown prince." It was only because of the beauty's initiative that he mistakenly thought that Guanyin was pitiful, giving him unrealistic self-confidence, that he persevered tenaciously and psychopathically.
Now, Duan Zhengchun is dead, Duan Yu is found to be his own son, and his revenge has been exceeded: duan Zhengming obediently passed the throne to his son after he was extinct.
The old is broken and the new, and after the big break is the big stand. Duan Yanqing had already completed the "shabby" part by relying on Tianzhu's yin and yang mistakes, and "Lixin" was something he was not good at. Then leave it to your son to do it. This is the best ending.