After losing Zhang Fei and fleeing Guan Yu, Cao Ang, who was at Tancheng Gate, dared not say that he would fight in the city again. The city gates were immediately blocked and then he guarded the city.

The Qingzhou soldiers first dug a trench around Yu Tancheng to prevent the enemy from coming out to attack at night, and then the remaining people began to build heavy siege equipment under the command of Chen Qunxun Biao.

In fact, the most time-consuming process of siege by the ancients was to make siege equipment, because these things were often dozens of meters high and dozens of tons. It was a dream to move long distances under the current transportation conditions, so they were usually built on site.

This is also the fundamental reason why the defenders will cut down all the trees around the city before defending. These siege equipment are made of local materials. Cleaning up trees near the city can delay the enemy's attack time to the maximum extent.

However, this offensive and defensive battle came in a hurry. Cao Ang had just captured Yu Tan the day before yesterday. Not to mention cutting off nearby trees, even many of the siege equipment they used some time ago were left outside the city without having time to completely destroy it. With a slight correction, they can be put into use immediately.

In fact, Li Qingyuan and Aning were preparing to tinker with black gunpowder and TNT as a killer weapon. After all, the reason why cities in later generations no longer had heavy city walls is mainly because of the rise of cannons, and no city wall can withstand the bombardment of cannons. Therefore, the protective facilities such as the city wall, which have a history of at least 4,000 years, gradually disappeared from people's vision.

Unfortunately, when they excitedly created the TNT, they found that the lethality of this thing was not even as good as Li Qingyuan's casual blow!

If a 10 kilogram TNT is definitely a disaster in the ordinary world, it can even directly destroy a skyscraper as long as the angle is right.

But in this world, the power of ten kilograms of TNT can only destroy a house, and even the trees next to the house are not affected much.

It seems that the physical rules caused by different focus in each world are also different. If you wait in those advanced worlds, such as Journey to the West, the Conquest of the Gods, etc., Li Qingyuan thinks that even if you use nuclear bombs as fireworks, it will probably be a routine operation!

When the scientific and technological revolution was ineffective, Li Qingyuan felt that it would be better to conquer the city according to the rules of this world.

Whether it is to build a car, fly a building, or fly a car, it takes a lot of time. Even if you can pick up Cao Angjun's remaining body outside for repair and use, it is probably not possible to do it in less than two or three days.

Therefore, in the past two days, Tancheng was in a short period of peace. Before the siege equipment was made, the Qingzhou army naturally could not run to death against the city wall. Cao Ang's army naturally did not dare to go out of the city to fight when Guan Yu and Zhang Fei fled to death. Both sides just stared at each other through the moat.

Li Qingyuan was naturally not idle either. In the past two days, he interrogated Han Ji and got a lot of useful information from her.

By the way, Han Ji is the woman Liu Bei used to use his skills to replace Guan Yu. According to her own account, she was a native of Xuchang. Because Xuchang is the capital of ancient Korea, she is called Han Ji!

Many women in this era don’t have names, or they just need to name a similar and easy-to-read name.

For example, Big Qiao and Xiao Qiao, like Han Ji!

Another example is Aning!

In fact, Aning has a name. Her full name is Tang Yanning. However, Li Qingyuan felt that it was too troublesome to call him, so it was easier to call him Aning, which led to everyone thinking that Aning's name was Aning.

OK, it seems a bit difficult to talk about, but don’t care about these small details, let’s talk about Han Ji.

Han Ji was provided to Cao Cao as a political achievement by the local government. Whether in Yanzhou, Cao Cao or Yuzhou, every county would pay a certain number of beauties every year, which is also a type of political achievement.

Most of the beauties who paid tribute were divided up by the military leaders of Cao Cao's army, while Han Ji was directly enshrined in front of Boss Cao because she was beautiful.

But everyone knows that Boss Cao has no sexual interest in ordinary women at all, and at this time, the three Liu Bei groups were forced to come and join him, so Cao Cao waved his hand and directly gave nine beauties to the three brothers, just as a welcome gift!

To be honest, even though Li Qingyuan is already considered a machismo in the eyes of ordinary people, it is much better than these real ancients!

Moreover, Li Qingyuan also learned from Han Ji that two of the sisters who entered Liu Bei's mansion with her were similar to hers, which means that Liu Bei's guy still had two chances to use his skills.

After the practice of Gan Mei and Han Ji, Li Qingyuan has figured out the conditions for the release of Liu Bei's skill.

First of all, this woman must have an absolute subordinate relationship with him, Liu Bei, that is, she must be nominally Liu Bei's person.

Second, a woman’s appearance must meet the standards. It is estimated that it will not work without 90 points!

The third one is the most pitfall, that is, it must be guaranteed to be original!

In other words, Uncle Liu wanted to find a woman for himself with a reputation of lustfulness, and then he could only drool at these natural beauty.

But as a hero, Liu Bei can definitely tell which is more important between a woman and her own life.

Just like this time, if Han Ji didn't lie, Liu Bei was actually holding two life-saving aces in his hand, but he would rather let Zhang Fei die tragically than use it. You can imagine what he was thinking in his heart!

Those two aces should be left to Liu Bei and Cao Ang, because if Liu Bei used his skills to escape back to Xuchang, Cao Cao would definitely use his head to pay tribute to his son.

There is nothing to explain about Han Ji's arrangements. For most women in this era, as long as they have a place to settle down, they don't care who the man they are, and they are not qualified to decide their future.

Three days later, Chen Qun had almost already repaired the siege equipment that Cao Angjun had abandoned to the repair of the siege, and then Li Qingyuan began his first real siege battle four years later.

Although he once participated in the Hulao Pass offensive and defensive battle with the Eighteen Princes back then, he was just a marginal supporting role at the time, and now he has truly become the protagonist!

The rushing car, nearly 30 meters high, slowly drove towards Xia Pi City. This giant can accommodate nearly a hundred archers, which can directly cause high suppression, thereby suppressing the soldiers on the city walls.
Chapter completed!