The guards who heard Su Yu's laughter hurriedly gathered outside the door of the imperial study, and someone came with a worried voice: "Emperor! Emperor! But there are assassins?"

"It's okay, just stand down. ”

Su Yu waved his hand and shouted with a smile outside the door of the imperial study.

"Wow. We are waiting outside the door, waiting for the emperor to send me at any time. ”

The guards stood respectfully outside the door of the imperial study and waited, the entire palace inside and outside was guarded around the clock and in shifts, especially around Su Yu, there were many elite brocade guards and black jade horsemen of the Imperial Forest Army, and the idlers and others could not get close to Su Yu's side at all.

In the imperial study, Su Yu took a deep breath, opened the technology tree with a smile, and continued to observe.

A lot of military technology and people's livelihood technology are what Su Yu desires, and they are also needed by the Yanhuang Empire. As soon as Su Yu thought about the possible effects of developing military technology, his heart was on fire, when the regular garrison of the Yanhuang Empire only needed ordinary people to become powerful soldiers, and ordinary people could slaughter martial artists with scientific and technological weapons, which undoubtedly greatly reduced the cost of forming an army!

Even aside from military technology, the livelihood technology on the technology tree can bring great changes to the Yanhuang Empire, improving the level of the empire in terms of people's livelihood, economy, education, medical care and other aspects.

Only by improving in all directions can the Yanhuang Empire be called the first empire of mankind.

However, just after Su Yu got to know the technology tree in depth, his originally joyful expression became full of wry smiles.

Come on.

On these two branches of science and technology, even the cheapest and most basic core technology of science and technology requires millions of people's energy!

Although these core technologies can automatically complete the research and development of science and technology by simply investing people's energy, the people's energy required is still very expensive for Su Yu.

At the very least, he won't be able to upgrade and use the tech tree in a chic way anytime soon.

Su Yu looked at the incomparably attractive core technology of the technology tree with very hot eyes and reluctance, and now he only had more than one million people's energy, and he could only upgrade the lowest level of steam technology and gunpowder technology.

These two technologies belong to the lowest level of the technology tree, and they have little effect on the Yanhuang Empire.

There are many technologies on this technology tree, but the more advanced the technology, the more pre-requisites are required. In other words, it is impossible for Su Yu to accumulate enough people's energy to directly upgrade the most advanced cosmic-level technology, he needs to start with steam technology and slowly upgrade to light up the technology tree.

"Alas, you didn't show up at the right time!"

Su Yu smiled bitterly and sighed, if the technology tree appeared in two years when he had a lot of people's energy, then he wouldn't have to enjoy the feeling of anticipation and torment at all.

I really own a treasure mountain for nothing, but I don't have a guy to mine the treasure mountain!

But fortunately, Su Yu's personality is calm, and after a little excitement, Su Yu changed his mentality, since he can't get and use the technology tree to his heart's content now, then just wait, and keep it as his hole card is also a good choice.

Su Yu turned off the technology tree, and after groaning slightly, he chose the option to open the virtual building.

The level cap of the virtual building is linked to the level of the territory, and after upgrading the third-level territory, Su Yu can now upgrade the barracks to one level and the statue of the emperor to two levels.

The level of the barracks is directly related to the issue of the secondary and tertiary cultivation of the troops, the second-level barracks can only train a certain branch of the army twice, and the third-level barracks can train the soldiers three times.

The statue of the emperor is directly related to the effect of improving the people's will in the territory, and it can also reduce the negative impact of some policies to a certain extent, which is also a good virtual building, and it also needs to be kept in a full-level state.

These two virtual buildings both have a strong hint effect on the territory, and Su Yu naturally prioritizes upgrading them.

"System, I'm going to upgrade the barracks once, upgrade the emperor statue twice!"

Su Yu commanded in a deep voice.

【Drip!Upgrade Begins!】

The system emitted a sound, and a small strand of light appeared on the system screen, and began to rotate the two virtual buildings in the virtual territory surrounding the system screen.

After the light dissipates, the corresponding people's energy is deducted, and the upgrade is successful.

[Drop!Congratulations to the host!The third-level barracks have been successfully upgraded!510,000 points of people's hearts are consumed!]

[Drop!Congratulations to the host!The third-level emperor statue has been successfully upgraded!620,000 points of people's heart energy are consumed!]

The two upgrades consumed a total of more than one million of Su Yu's people's energy, which also made Su Yu's remaining people's energy not much.

Su Yu opened the blacksmith shop of the system again, selected a few small technologies related to military and people's livelihood, and directly clicked to upgrade. For example: the blessing of the people, the soldier's defense, the soldier's attack, the soldier's movement speed... And so on and so on some small territory technology.

The technology options in the blacksmith are more similar to the base values of the province's military and civilian, which are different from the tech tree.

After Su Yu's selection and upgrade was completed, there were only more than 50,000 people's hearts left in his body.

However, this time, more than two million people's energy was invested in the development of the territory, and Su Yu was confident that the potential of the Yanhuang Empire would be raised to a small level.

After all this, Su Yu opened the lord's altar.

"Hey, hey, system! I'm going to summon the generals of all worlds!"

Su Yu rubbed his hands, his eyes flashing with anticipation.

He has drawn the god generals three times in a row, Zhuge Liang, Zhao Yun, and Bai Qi!

So this time the lottery, will there be a fourth god general?

Probably maybe!

It's good that I just raised the level of the territory, and the system should give me this face.

Just when Su Yu was thinking wildly, the system altar had already begun to rotate, and the picture was rotating rapidly, and just when Su Yu was distracted, the system had completed the summoning of new generals.

[Congratulations to the host, get a famous general!Because of the talent of the famous general, the host is specially gifted with a strong general!]

The prompt sound of the system made Su Yu slightly stunned, how did he get a famous general?

Well, luck doesn't come every day, and I recognized the famous general after drawing, but how can I buy one get one free and give me one?

What does that mean?!

Just when Su Yu was confused, the system popped up with the attributes of a new Ten Thousand Realms general.

Name: Renjie Di.

Age: 39.

Race: Terran.

Loyalty: 100 out of 100.

Quality: Famous general.

Strength: None.

Skill: [Discipline] Passive Skill. Good at distinguishing between right and wrong, knowing the laws of the country, and blessing the law and social stability of the territory to a certain extent.

Talent: [Bodyguard]: Passive talent. When he was summoned for the first time, he brought a personal guard "Li Yuanfang", and when he served under the same monarch as Li Yuanfang, he could make Li Yuanfang's martial arts strength +1 and Di Renjie's skill effect +1.

Name: Li Yuanfang.

Age: 38.

Race: Terran.

Loyalty: 100 out of 100.

Quality: Strong.

Strength: The pinnacle of the hundred-year-old realm (+1 is the pinnacle of the Burning God Realm).

Skill: [Eye of Yuanfang] passive skill. Good at perceiving the truth of things.,Only ask your heart.,When facing the enemy, there is a certain chance to ignore the opponent's level and find the flaws in his moves.。

Talent: [Fierce Temperament]: Passive talent. Jealousy is like hatred, and when fighting against the condemned, territorial enemies, emperor enemies, and Di Renjie's enemies, they all have a 50% combat power bonus effect.

"This ......"

Su Yu opened his mouth and smiled helplessly. It turned out to be these two people, no wonder they were summoned together!

Di Renjie?Li Yuanfang?

No matter what Su Yu thought, he couldn't have imagined that he would actually summon these two people!

Su Yu could imagine that when he held a court meeting in the future, if he asked Di Renjie about anything, he would inevitably not be able to escape that sentence...... Yuan Fang, what do you think about this?