Oniguzi is an extremely mysterious person, and the world only knows that he is proficient in strategy, and is good at the art of war and cunning, and a hundred schools of learning. However, in the chaotic warring states, this person did not set foot in it, but just lived in seclusion in the mountains, quietly watching, as if this world was just a chess game for him. And his control over the direction of this chess game all lies in those disciples from the Ghost Valley.

There are four main people from the Ghost Valley in the Warring States, namely Su Qin, Zhang Yi, Sun Bing, and Pang Juan, all four of whom without exception more or less affect the rise and fall of various countries in the Warring States, and what is even more strange is that the relationship between the brothers of these Ghost Valleys at that time did not seem to be very harmonious, so that it was basically the situation of your death and death.
Su Qin Zhang Yi
Su Qin and Zhang Yi had the greatest influence on the Warring States, and the art of vertical and horizontal transformation was also famous in the world, although these two were not generals on the battlefield of war, they were also the heroes of "angry and the world is afraid, living in peace and resting in the world".
When Su Qin Zhang Yi learned from the Ghost Valley, they were just two poor boys who did not have much fame, and could only rely on their own hands to fight step by step, Su Qin succeeded relatively early, and soon entered the complex stage of the Warring States, and achieved the achievement of "combining and indulging", and admired the Six Kingdoms, so that the Qin State did not dare to send troops to HanguGuan for fifteen years.
However, as we said before, the disciples of the Ghost Valley seem to be unable to get over each other, as Su Qin's classmate friend, although Zhang Yi did not become as famous as Su Qin, he quickly gained a foothold in the Qin State, and after Su Qin's "hezhong" technique resisted the Qin state for 15 years, he also lobbied the countries with the method of "lianheng", which broke Su Qin's "hezhong alliance" and also made the qin state start the pace of unifying the world.
Sun Bing Pang Juan
If Su Qin and Zhang Yi are competing in strategy, then Sun Zhen and Pang Juan are a fight between you and me. In fact, this is also the inevitable trend of history, Sun Bing And Pang Juan and the two are also penniless from the ghost valley of the same window, but also like the previous two, one of them has achieved a certain social status first, but unlike the former, although Pang Juan became famous early, but his jealousy is extremely heavy, and he has executed Sun Zhen, so these two people do not wear the liangzi of heaven together, and it is also considered to be a knot here.
Just as the "combination of vertical" and "continuous horizontal" are opposed to each other, the strategic ideas of "aggression" and "rescue" between Sun Bing and Pang Juan are also opposed to each other. In fact, there have only been two wars between Sun Zhi and Pang Juan, and the process of these two wars is extremely similar, which corresponds to the sentence "Although history will not repeat, it will rhyme."
The story of Sun Bing And Pang Juan, the two Ghost Valley disciples, finally ended with Pang Juan's self-murder.
Somehow, although the oni valley disciples are all talented people, they do not know the principle of cooperation and progress, perhaps the oniguzi from the beginning of their teaching is the complete opposite of the two directions, but also in line with the Taoist concept of yin and yang living together.