At this time, after the Jin soldiers destroyed the Liao State, they took the opportunity to find an excuse to have friction in the northern border.

The leader of the Jin people, Wanyan Aguta, established the Jin State. Song Huizong thought that there was an opportunity, so he sent an envoy to Jin to propose the matter of joining Jin to destroy Liao. Song attacked Yanjing and returned in vain. Jin captured Linhuang Mansion and Liao died. In the second year of Xuanhe in the Northern Song Dynasty (1120), the Song and Jin countries formed a maritime alliance, agreeing that Jin would attack Liaozhongjing, and Song would attack Liao Yanjing. The Song court originally thought that it would be easy to seize the sixteen states of Yanyun on this basis, but it did not expect that the Liao army could not withstand the attack of the Jin soldiers, but it was not afraid to fight the decaying Song army, and as a result, in the fourth year of Xuanhe (1122), the Northern Song Dynasty sent troops to attack Yanjing twice, but they were defeated by the Yanjing defenders of Liao. By the end of the year, the Jin soldiers marched from Juyong Pass to conquer Yanjing. In this way, the Jin people said that they would no longer hand over the Yanyun Prefectures to the Northern Song Dynasty. After bargaining between the two sides, the Song Dynasty repeatedly backed down, and in the end, the Jin Dynasty only agreed to hand over Yanjing and its six prefectures and 24 counties to the Song Dynasty, but asked the Song Dynasty to hand over the 400,000-year-old coins originally given to the Liao Dynasty to the Jin Dynasty every year, and also to hand over the taxes of the 6 prefectures and 24 counties to the Jin Dynasty. The Song Dynasty promised to pay another 1 million guan every year as the "tax money" of the six states of Yanjing, and the Jin Dynasty agreed to withdraw the troops from Yanjing, but when the troops were withdrawn, the Jin soldiers swept away the rich gentry and gentry of the children of Jinbo in Yanjing, and only handed over a few empty cities to the Song Dynasty.

The battle against Yan exposed the decay and weakness of the Song Dynasty, but Huizong, Wang Hao, Tong Guan and others claimed to be "immortal merits" and celebrated them vigorously. Tong Guan went to "Fu Yan Song", described a series of defeats as victories, and boasted of "triumphant return to the teacher". Wang Hao, Tong Guan, Cai You and others were all added to the ranks. Hundreds of officials congratulated one after another, and set up the "Fuyan Cloud Monument" to make a record. The Northern Song Dynasty was about to fall, but the monarchs and ministers of Huizong were deceitful and self-deceptive in the "victory" of the so-called "Fu Yanyun".

After that, the power struggle within the Northern Song Dynasty court was fierce, and Wang Hao became increasingly powerful with his merit in redeeming Yanjing, and he was at odds with the crown prince Zhao Huan, and conspired to make Zhao Kai, the king of Yun, the crown prince. The right prime minister, Li Bangyan and Cai You, formed a party to exclude Wang Hao, and Cheng He also impeached Wang Hao for being "treacherous and tyrannical", and Wang Hao dismissed the prime minister. At this time, Zhu Mian strongly persuaded Huizong to use Cai Jing, an old traitor who was eighty years old and blind and could not write, and Cai Jing became the consul general of the Taishi, and the specific affairs were controlled by his son Cai Xuan. Bai Shizhong is the left prime minister Dazai, and Li Bangyan is the right minister Shaozai, all according to the will of Cai Jing's father and son.

In July 1123, Zhang Jue, a former Liao general and Jin Pingzhou (now Lulong County, Hebei), stayed behind to surrender to the Song Dynasty in Pingzhou, and fled to the former Liao Yanjing, which had just become the Yanshan Prefecture of the Northern Song Dynasty. The Yanshan Mansion of the Northern Song Dynasty had no choice but to behead Zhang Jue, causing the Han people in the sixteen states of Yanyun to be dissatisfied. In August, Wanyan Aguta, who was inclined to make peace with the Song Dynasty, died of illness, and his younger brother Wanyan Sheng succeeded him and planned to attack the Song Dynasty. In April 1125, Tong Guan, Cai You, Bai Shizhong, Li Bangyan and others ostracized Cai Xuan. Cai Jing was dismissed again, Tong Guan was crowned the king of the county, and Cai You was added to the Taibao. In August, the Jin State attacked the Song Dynasty on the grounds that Zhang Jue had changed.

In 1125, Jin Taizong launched the Jin War to destroy the Song Dynasty on the grounds that Zhang Jue, a Liao general in the Song Dynasty's retaining of Pingzhou, violated the previous agreement between the Song and Jin sides. He sent Bo Jilie Wanyan Xian to be the marshal of the capital, divided his troops from Shanxi and Hebei to the south, and finally joined Kaifeng, the capital of the Northern Song Dynasty.

"Kill." The Jin soldiers went all the way south, burning, killing, looting and doing all kinds of evil wherever they passed. With the power of exterminating Liao, it is unstoppable, and the goal is very clear. The Jin soldiers were all cavalrymen and never stayed in one place. Kill the past, and don't care about the back. On the contrary, the Northern Song Dynasty was weakly armed and most of them were foot soldiers. There were few cavalry in the army, and the Quartet border army was slow to react, so that the Jin soldiers quickly approached Kaifeng.

As the front-line battle reports continued to come, Song Weizong was shocked. You must know that he is a cynical lord, and he has no opinion when he encounters such a life-threatening matter. So, he summoned several of his henchmen overnight, Cai Jingtongguan and others to discuss countermeasures.

"Ladies and gentlemen, you see that the situation is so tense now, what should we do?" Song Weizong, at this time, the six gods have no master, and as soon as he opened his mouth, he went straight to the topic.

"Official, I see that this Jin soldier is fierce, and even that strong as Beiliao has been destroyed in such a short period of time. Holding on is definitely not able to hold on, it is better for us to go south to avoid the edge. Tong Guan also suffered a lot of defeat, and now when he thinks of the lingering scenes in his mind, he can't sleep well.

"Yes, the official family, I think my Great Song Dynasty has a vast territory, as long as we are not in Tokyo, even if Kaifeng is breached. We can also convene localities and join forces to fight. Where there is life, there is hope. Cai Jing, who is already old, really responded to that sentence, the older a person lives, the more afraid of death becomes.

Song Weizong, who originally had no idea of resisting, was said so by his two henchmen. Instantly take the opportunity to get off the donkey down the slope and push the boat down the river.

"But now that the iron horse of the golden man has not yet arrived in Tokyo, we have just left. Isn't it regarded as child's play by people all over the world, leaving infamy through the ages. "Although Song Weizong is mediocre and incompetent, he still attaches great importance to his face.

"Why don't the officials use the prince to supervise the country and the Son of Heaven to tour the south. Let His Royal Highness the Crown Prince stay in Kaifeng, and then we will be like this. "Tong Guan, who has always been on the wrong path with the current prince, has come up with a desperate plan to let the prince go to live and die with Tokyo City alone.

"This is also the way, no matter how I say it, he is my son, and he should also share my worries. But I have to give him a little sweetness, otherwise I'm afraid that he won't give in, and the bamboo basket will be empty. "Song Weizong has no family affection to talk about, just in response to the old saying, the most ruthless emperor family.

"Official, it's not difficult, but if you want to reap, you have to learn to make trade-offs first. What could be more tempting, you say, than the throne of emperor? Cai Jing didn't know if he was dizzy at this time, or if he was sick and rushed to the doctor, so he actually gave Song Weizong such a bad idea.

The three of them conspired all night, and so was the plan.

The next day, the current prince Zhao Huan was found, and the father and son faced each other.

"Heng'er, now the south is stable. However, when I investigated the causes, most of them were caused by local officials embezzling and taking bribes to prey on the common people. This is my fault. After pondering deeply, I definitely went south to inspect and appease the people, so that I could lay a thousand-year-old foundation for my great Song dynasty in my lifetime. But the world can't be left without an owner for a day, fortunately, the emperor is now an adult. I have decided to pass on the throne to you, hoping that you will live up to my cultivation. Song Weizong said bitterly, and said to the prince with full feelings.

At this time, the amount of information was too large, and for a while, the prince's non-functioning brain couldn't turn around, and he was stunned on the spot.

"Father." I was about to say something. was interrupted by Song Weizong again.

"This world will be handed over to you in the future, and I will rely on you to defend the country of the Great Song Dynasty in the future. I will go out of the city in the afternoon, and you will be enthroned on the same day. Song Weizong didn't give the prince a chance to continue, turned around and patted his ass and left.

And the crown prince Zhao Heng, who came back to his senses, was like a thunderbolt in the sky at this moment, and he was suddenly chopped and frozen in place.