This chapter begins with a brief introduction to the nightmare of the Chinese princes, Chidi.

Chidi's surname is Kui, and his ancestors are called "ghost clans". The ghost people also belong to the farming people, who lived in the south of Shanxi in the early days, and their history can be traced back to the period of the Five Emperors. The ghost clan was already very powerful as early as the Zhurong period, and Lu Zhong, the son of Zhurong Wu Hui, married a woman from the ghost clan, and one of them had a son surnamed Mi who was the ancestor of the Chu State.

The reason why the oni clan got such a name may be speculated to be because they like to wear terrifying masks or draw terrifying patterns on their faces when they fight or sacrifice.

During the Shang Dynasty, a tribal alliance called "Ghost Fang" in the ghost clan became a fierce rival of the dynasty, and the two major forces fought continuously for hundreds of years, winning and losing each other. After Wu Ding ascended the throne, he mobilized the power of the country and spent three years to conquer the ghost side before forcing the ghost side to bow down.

One of the three princes of the Shang royal family during the reign of King Xu, the Ghost Marquis (also known as the Nine Marquis, the one who caused the Xibohou to sigh because of his killing) was the monarch of the Ghost Fang Kingdom. However, there are still many tribes in the ghost clan that are enemies of the Great Shang, and those tribes are the ancestors of the "Chidi" in the Spring and Autumn Period.

After the Spring and Autumn Period, Chidi has established a number of countries, the more powerful ones are Lu, Duochen, Liuhu, Yaoru, Jiashi, and Dongshan Gaoluo, which are distributed in the Changzhi Basin and the southern part of the Taihang Mountains.

Chidi is named because of the admiration of red, is a branch of advanced civilization in Rongdi, living a half-farming and half-pastoral life. The Chidi people are tall, strong, brave and good at fighting, and the individual combat effectiveness is second only to Changdi. Although there are disputes within the Chidi group from time to time, they are united externally, and countries often bully all countries that do not belong to Chidi.

The Western Zhou Dynasty was strong, and Chidi was forced to rein in his sharpness, and his living space was constantly compressed. After the fall of the Western Zhou Dynasty, the king of Zhou had the name of the Son of Heaven but not the Son of Heaven, and the princes of the Central Plains poured into each other, either fighting civil wars or foreign wars. Chidi felt that his good days were coming, so he began to move.

When King Cheng was dividing Shuyu, he moved the nine major clans with the surname Kui into the Jin Kingdom, and those people were an important part of the people of the Jin Kingdom. Jiuzong with the surname Kui had a prominent social status, and both participated in the management of state affairs and could also intermarry with nobles surnamed Ji.

In the sixteenth year of the reign of Duke Lu Zhuang (676 BC), Duke Wu of Quwo unified the Jin kingdom and helped the Marquis of Jin to fight against Quwo for a long time, and some of the people surnamed Jiuzong fled back to Chidi. These people brought with them the advanced culture and technology of the Jin Kingdom, and the national strength of Chidi was able to develop rapidly. In the middle of the seventh century BC, the powerful Chidi was no longer satisfied with the small territory surrounded by mountains and rivers, and began a large-scale invasion of the princes of the Central Plains.

After research, the Di lords decided to invade the east first, because the army could reach the flat and vast Hebei Plain through the Taihang Mountains. The land there is fertile, the country is rich, the population is large, and it is the anointed land of China; In the southwest, the impoverished Jin kingdom was imprisoned between mountains and rivers.

In the spring of the first year of Lu Min (661 BC), the Chidi coalition army composed of 4,000 cavalry and 40,000 infantry passed through Fukou and reached the periphery of Handan. Handan is the second largest city in Xingguo, and it is also an important military town guarding Fukou, the city is high and strong, the city has a large population, sufficient grain and grass, and a perfect garrison. In times of peace, Rong Di lived in harmony with the Chinese people, and Handan City was crowded with merchants dressed in various costumes and speaking various languages; But by wartime, Handan had become the front line of the war.

There is a fortress in the northwest and southwest of Handan, the fortress is built on the high ground, and the two fortresses and Handan City constitute a defense system in the shape of "product".

One part of the Chidi army passed between the two fortresses and went straight to Handan, while the rest of the army surrounded the two fortresses.

The Xing army in Handan City rushed out and fought a battle with the Di army, but both sides attacked tentatively, and each withdrew without distinguishing the victory or defeat. Di's army forced under the city of Handan and dug a long, wide trench. The location of this ditch was not far from the city wall, and neither side could assemble under the city, and it seemed that Chidi was going to defend rather than attack the city.

There was originally a small river on the north side of the fortress in the northwest of Handan, but later due to the diversion of the river, only the bare riverbed remained, and the first target of Chidi's attack was the northwest fortress. Chidi dug two trenches to separate the two fortresses, but the trenching work was difficult because the Xing army often rushed out of the fortress to attack the enemy.

The tactics of the Xing army were very difficult, when the Chidi counterattacked, the soldiers quickly retreated, when the Chidi caught up with the slope, the Xing people condescended to shoot arrows at them, and when the Chidi retreated, the Xing army began to pursue again.

When Chidi made sure that all three parties were cut off, the soldiers went down to the riverbed and dug tunnels into the hills. Chidi did not want to burrow into the fortress by digging a hole, but to dig up the foundation of the fortress and let the Xing people taste the taste of landslides.

Chidi's unusual behavior made the Xing people vigilant, and after many reconnaissance and analysis, they finally figured out the enemy's plan.

Now Chidi didn't hide his tactical intentions, so he made a big splash and went into full swing - they thought that creating exaggerated action scenes would cause more psychological pressure on Xing Ren.

Chidi was divided into several construction teams, and the soldiers sang barbarian songs, cheered each other up, and dug day and night. The construction site was bustling with people, bustling with people during the day and brightly lit at night, and they erected roof columns inside the enlarged cavity to prevent themselves from burying themselves. According to the Di people's idea, after the mountain was hollowed out, they poured fire oil on it, and then put a fire to burn the pillars, and the mountain collapsed, and the fortress naturally collapsed.

But the clever Xing Guoren quickly found a means of countermeasures. The Xing people began to dig shafts inside the northern wall of the fortress, and they dug seven wells side by side along the wall, each with a diameter of about three meters, so that five or six soldiers could go down at a time. The Xing people had to sabotage the enemy's plans before they dug under the center of the fortress.

When the well is dug to a certain depth, the bottom of the well is getting closer and closer to the cavity below. With an exclamation, one of the soldiers dug through the roof of the cave, and he and a few of his companions sank together. These people fell from the sky, causing a lot of panic to the enemy who were working in the tunnel, and they thought that the roof of the cave had collapsed, so they let out a louder exclamation, threw down their tools and scrambled to flee.

The fallen soldiers were tied with safety ropes around their waists, and their companions on them immediately shook them up with their wheels. Di Bing returned, looking up in amazement through this patio, and they saw Xing Ren looking at them with the same gaze. A brief war of words broke out between the two sides, and then Xing Bing began to throw clods of earth and raise them with dust. Di Bing suddenly couldn't see anything, and even his breathing became difficult, so he immediately turned around and ran away.

Soon, other shafts were dug through, and the people of Xing were often sabotaged by the down. Chidi was very nervous, so he lined up in the cave. But what they were waiting for was a clay pot filled with oil. Since the hole was dug diagonally upwards (so that the fortress would have a sliding effect when it collapsed, and the damage would be greater), the oil all flowed down the slope.

Xing people then threw torches into the cave, and the cave suddenly became a sea of fire, the screams were deafening, and those patios became chimneys, and the fire became more and more vigorous, and many pillars were burned to ashes, and many people were burned to death, smoked to death, or buried by the collapse in the panic.

The Xing people in the fortress on the opposite side didn't know what was going on here, they only saw thick smoke billowing out, thinking that the fortress had been conquered. While they were nervous, they heard the sound of drums and cheers, and saw the dancing flags. They couldn't guess what was happening on the other side, but they were sure that their companions had won the battle, and they cheered.