C160 Teacher theory

When Xiao Wen finished listening to Sun Shangxiang's explanation, he finally understood that there were still spies in this world.

Although this kind of spy, in a sense, also has some diplomatic work to do. For example, in the Chang'an City, there were a few people who specialized in communicating the words of emperors such as Li Shimin and Zhu Yuanzhang.

Sometimes