After making a decision in his heart, Duan Fei immediately put it into action, he left a letter for Lin Feiyan, saying that the one-year appointment had been completed, and it was time to leave, and if he had a fate, he would see you in the rivers and lakes.

As for the Wei Cong couple, Duan Fei left them a copy of "Nine Chapters of Arithmetic".

This "Nine Chapters of Arithmetic" is not the same as the arithmetic book in Chinese history, it was specially written by Duan Fei in combination with the various arithmetic methods in his memory, as well as his understanding of arithmetic, and then integrated the cultivation methods of the Kyushu world.

This includes more than just the math, what really matters is the practical skills of the math in all aspects.

Including military training, battle formations, economy, people's livelihood, etc., and even alchemy, refining and other skills that can only be mastered by cultivators, can be combined with the number of techniques, so as to become more efficient.

It can be said that Duan Fei's "Nine Chapters of Arithmetic" is the first encyclopedia of the Kyushu world, and after it is entrusted to the Wei Cong couple, only research-oriented talents like them can apply "Nine Chapters of Arithmetic" to daily people's livelihood and benefit the entire human race in Kyushu.

After all, the influence of the Tian Yuan Dynasty on the Kyushu world is self-evident, if the Tian Yuan Dynasty changes, it will naturally silently affect other dynasties and major forces, so that the Kyushu world will make great strides forward.

Duan Fei had already seen that the cultivators were blindly pursuing their own strength, completely ignoring the daily needs of the people, which made the development of the Kyushu world almost stagnate.

Only Duan Fei's thoughts and thoughts are different, if he can bring changes to the world of Kyushu, then for Duan Fei, that feeling of comfort is much more refreshing than completing the system task.

After leaving letters and books, Duan Fei also made a decision on his trip to Zhongzhou, and then went to Manzhou alone.

Only by going to Manzhou can it be possible to figure out who has such a great ability and actually killed more than ten soul cultivation realm powerhouses of the Lin royal family in one go!

Not long after Duan Fei entered the territory of Manzhou, there was finally a shocking news from Zhongzhou, that is, the Tianxiang Emperor of the Tianyuan Dynasty drove his own expedition and took up the elite of the whole country, known as the army of 100,000 cultivators, as well as the 100 strong people, marching towards Haizhou!

No matter from any point of view, Emperor Tianxiang is the most powerful contender for the number one person in the world in Kyushu today, and when he left the Yuan Capital to drive the expedition, it also means that the Tianyuan Dynasty has used all its strength this time.

Even if the tragedy of more than ten people of the Lin royal family being wiped out occurred in Manzhou, the headquarters of the Demon Beast Army and the Demon Dao Alliance were still set up in Haizhou.

Now Emperor Tianxiang's strategy is that he doesn't need to care about the details, just focus on smashing the Yellow Dragon and completely tame the demon beast army, and when the time comes, I'm afraid that they won't be able to hand over the murderer and won't be able to take revenge?

If the army of demon beasts is stubborn and doesn't know each other in the end, then they will all be wiped out, and it will also be regarded as revenge!

This is the domineering spirit of Emperor Tianxiang's personal expedition, and it is also the foundation of the Tianyuan Dynasty for more than ten thousand years, always standing on the top of the world in Kyushu!

Throughout the history of the entire Kyushu world, there are only a handful of times that the Tian Yuan Dynasty has moved the real style, and this time it is undoubtedly the real one.

Now that Emperor Tianxiang has targeted Haizhou, he naturally attracted all his attention to Haizhou, which is convenient for Duan Fei to act in a low-key manner in Manzhou.

For Duan Fei, without investigation, he has no right to speak, and if he doesn't go to the scene to take a look, he will always feel a little unsure.

Because of the information provided by the feather line of demon beasts, and the fact that after Duan Fei entered the barbarian state, there was a feathered demon beast following him to guide him and act as a guide, so Duan Fei soon came to the place where Lin Xiangzheng and the others fell.

It's only been a few days, but the army of demon beasts that gathered here at the beginning has long disappeared without a trace, and the bodies of Lin Xiangzheng and others, except for the person who blew himself up, no one else has any residue left.

Aside from Lin Xiangzheng and the other person who were devoured by the mysterious blood-robed man, the rest of the fallen Soul Cultivation Realm powerhouses, their physical bodies were all great supplements for demon beasts, how could they be wasted?

Cultivators hunt demon beasts, taking their muscles and bones and inner pills as cultivation resources, and demon beasts will not be polite when facing cultivators, and the flesh and blood that can be devoured will never be wasted.

This kind of "love and kill" is destined to be the opposite of the cultivator and the demon beast, and it is impossible to truly live in peace.

In the past, there were constant conflicts between the two sides, but the scale was not large, and it was difficult for the demon beasts to organize, so there was no real war.

But this time, the demon beasts have been assembled into an army, and they have organizational discipline, so the disaster will be beyond the imagination of all forces.

It is very likely that this time the chaos will affect the whole of Kyushu, and even if it is not a crisis of extinction, it may change the pattern of Kyushu.

If there was someone behind the scenes who controlled all this, then Duan Fei would really want to find out!

At first, Duan Fei thought that it was the Daozi of the Northern Xuan Domain who was secretly making trouble, but judging from the current situation, I am afraid that there is something hidden in this.

It's hard to say if you can still find clues at the scene of the battle, but Duan Fei wants to try it anyway.

At this time, at the scene, although there was no trace of the demon beast, the seven or eight huge craters that had exploded on the ground were still there, and a lot of blood stains that had seeped into them could be seen from the gravel and soil.

These blood stains were not left by those strong men of the Lin royal family, but after they blew themselves up, there were a lot of demon beasts involved in the explosion.

Just by looking at these big pits on the ground, you can imagine how fierce the battle was that day, although the more than ten soul cultivation realm powerhouses of the Lin clan all fell, but they did not fall into the name of the Tianyuan Dynasty at all, and everyone fought desperately to the end.

Now Emperor Tianxiang is personally marching, known as an army of 100,000 and a hundred strong people gathered, just to avenge these fallen clansmen!

As for Duan Fei, he was carefully inspecting the scene, trying to find out what was unusual and strange during the battle, but unfortunately he never found it.

After all, the besieging Demon Dao Cultivators and those powerful demon beasts were superior in number, and no one showed any special abilities.

The blood-robed man's move of devouring the essence blood was the most bizarre, but there was no trace left afterwards, unless you saw it with your own eyes at the scene, how could you know that there was such a mysterious blood-robed man?

No clues can be found at the scene of the battle, so what to do next?