Qu Xin and Ji Ji each led more than 20,000 men into the mountains near Baishi City, Qu Xin's Chu army was responsible for capturing Baishi South City, where the main road was located, and Ji Ji's Han army was responsible for capturing Baishi North City on the other side. They all followed Su Qin's prior arrangement, marched lightly, and when they arrived at the foot of Baishi City, they first sent two teams of men and horses, dressed in the clothes of ordinary residents, and mixed into Baishi City.

The Qin army led by Gongsun Yan who retreated from under Shangguan City was in Baishi City at this time. There were still nearly 20,000 soldiers of the Qin State in Baishi City, but these soldiers were very lax. Because there are nearly 50,000 or 60,000 main forces of the Qin army stationed in Mianchi City in front, this is the rear, how can the forward troops of the Hezhong Army appear here?

However, Su Qin's plan was to attack him unprepared, and he expected that Gongsun Yan would not be thinking about defense in Baishi City. Because in his opinion, there are still three cities in the Mianchi area, Jiaoyang, Mianchi and Baishi, and all that the Hezhong Army owns is Shangguan City, and Baishi City, which is deep in the rear, is unlikely to become the target of the Hezhong Army's attack.

Moreover, even if the combined column army dared to penetrate deep into the rear of the Qin army, then the Qin army stationed in Baishi City was condescending and could quickly defeat the joint column army far away from the labor division under the city with static braking.

He took advantage of the lax psychology of the Qin army to let the vanguard of the Chu army and the Han army mix into the city, and then come to an internal and external combination, and capture Baishi City in an instant with lightning speed.

After the vanguard sent by Qu Xin mixed into the White Rock City, they quickly occupied the two gates of the White Rock City, and then raised fireworks as a signal. At this time, the Chu army and the Han army, which were hidden at the foot of the mountain, marched together, taking the southern city all the way and the northern city all the way.

They all entered the city before the Qin army could react. Gongsun Yan couldn't believe his ears when he heard the news that the Hezong army had been killed, and he shouted to the heralds: "What nonsense are you talking about, did those Hezong troops fly over with wings?" I think it's some local Korean residents who are rumors, so go and find out for me. ”

Gongsun Yan himself did not dare to slack off, he hurriedly put on his armor, rode a war horse, and led more than a thousand soldiers to the city gate in the direction of Nancheng to Mianchi. Before he reached the south gate, he encountered the Chu army led by Qu Xin.

The Chu army had more than 20,000 people, and there were many soldiers, and four or five people besieged a Qin soldier, and the Qin army was defeated and retreated. Seeing this, Gongsun Yan was so anxious that his hair stood on end, he waved the order flag in his hand, and ordered loudly to the Qin soldiers: "Don't retreat half a step, give me to step forward and resist the attack of the children of the Hezong army." ”

However, Gongsun Yan shouted in his throat, but to no avail, the army was defeated like a mountain, and the Qin army only responded to the battle in a panic, where was the opponent of the well-prepared Chu army.

In less than half an hour, the Chu army had already attacked near the Yongdao in the center of the city, and Gongsun Yan saw that the situation was not good, so he hurriedly passed through the Yongdao and evacuated to the northern city of Baishi City. However, when Gongsun Yan passed through Yongdao and crossed the streets of Beicheng, he was even more dumbfounded, it turned out that the Han army attacking Beicheng had also rushed to the center of Beicheng under the leadership of Ji Ji.

Ji Ji is no stranger to Gongsun Yan, counting the first time he followed the Korean captain Xu Mu to save Shangguancheng, it is the third time he has met Gongsun Yan.

Therefore, Ji Jiwang saw Gongsun Yan riding a war horse and hurriedly coming out of the road, so he issued an order to the soldiers of the Han army in a loud voice: "The lord of Qin will put Gongsun Yan in front, let's go and capture him alive and avenge the dead and wounded Koreans!" ”

When the Han army was killing with great strength, they heard the order of the main general Ji Ji, so they followed the direction pointed by the command banner and killed Gongsun Yan like a tide.

Gongsun Yan originally thought that Beicheng was safe, but he didn't expect that Beicheng was also captured, and the situation was even more dangerous. He knew that something was wrong, and in terms of numbers, the Hezong army occupied the absolute initiative, and Gongsun Yan's heart was cold, and he said: "It's over, it seems that this White Stone City can't be defended." I'd better retreat from here as soon as possible and go to Hangu Pass, the border city of Qin. ”

Gongsun Yan made up his mind to retreat, but he didn't retreat lightly, he waved the order flag in his hand vigorously, shouting the order for the Qin army to resist. However, he himself retreated step by step along the street, making it clear that he was going to flee along the road.

Gongsun Yan dared not give the order to retreat easily, he knew that once Baishi City was lost, it would mean that the road for the Qin army in Michi City to retreat to Hangu Pass, the border city of Qin, would be cut off. If Sima Co was unfavorable in the battle at Mianchi, or if the grain and grass were cut off, the main force of the Qin army would face the danger of annihilation.

Gongsun Yan thought: "If I give the order to retreat at this moment, and the monarch will be held accountable in the future, he must first settle accounts with me." I can't be held accountable for this. If I can't resist it, at most it's just a disadvantage in battle. ”

At the same time, Gongsun Yan, who was a general himself, also reluctantly thought of his fate. He has suffered repeated defeats, not to mention the battle of Anyi, it is this battle of Mianchi, which was originally to atone for his crimes, and the momentum at the beginning was very good, so that he developed the confidence that the future minister of Qin is not his own.

However, the situation took a turn for the worse, first pursuing the deserters led by Xu Mu of South Korea, and was deposed by Sima Cuo, and then Sima Cuo used the power of the main general to transfer to Shangguan City to garrison, and was attacked by the coalition army on the right side of the column led by Ning Jun, and then retreated to Baishi City, Gongsun Yan was already discouraged and disappointed in his heart.

He vaguely felt that his performance in the Battle of Michi was definitely not what Qin Jun Yingsi wanted to see, coupled with Sima Cuo's insistence, Gongsun Yan himself felt that his prospects in the Qin State were no longer good. He even felt that Qin Jun Yingsi was unwilling to hold him accountable at this time, probably because the battle of Michi was still in a stalemate, and it was inconvenient to temporarily withdraw the generals and interfere with the army's morale.

Now that Gongsun Yan was once again leading the Qin army to retreat from Baishi City, he felt that Qin Jun would probably not easily bypass him. Gongsun Yan thought to himself: "I was originally a native of Wei, and I have worked hard in Qin State all these years, and I have always been bullied by Sima Cuo and other important ministers of Qin State. Why am I bothered, I should think about retreating early in the future, and once I find that the situation is not good, I will go away first. ”

Gongsun Yan was forced to retreat step by step by the troops commanded by the Han general Ji Ji, and he was already absent-minded and had no fighting spirit at this time.