Cleaned up the battlefield, stayed in the devil's office building for one night, and the next morning, the sign at the door was changed to the Environmental Protection Bureau.

"Bureau, let's recruit some people." Li Daqiang said.

"Well, there are guns and bullets in the arsenal, recruit a thousand people back first." Chen Yu said.

"Yes!" Li Daqiang nodded in response.

Chen Yu roamed the streets, bought some things, and hired someone to send them back to the Environmental Protection Bureau.

"There are too many impurities, the strength is not enough, let's charge some money."

In a flash, pieces of inferior steel become stainless steel.

"It's a little smaller, and it's a little bigger."

In the blink of an eye, the volume of pieces of stainless steel has strangely increased by hundreds of times.

Chen Yu, who is rich and systematic, constantly squandered the banknotes of the Han Kingdom, and in less than a few minutes, the raw materials for making the machine were available.

He took out a dagger that sharpened iron like clay, and after a while of cutting, the parts were formed one by one.

"The diesel engine is done, there is too little diesel in the devil's warehouse, and hundreds of tons of diesel fuel are charged with money."

The volume of the tank, which could only hold a few tons, quickly increased, and the only dozens of tons of diesel fuel quickly became hundreds of tons.

"The problem of electricity is solved, and the pharmaceutical production line is done first."

Chen Yu, who has a fast hand speed, relies on the infinite recharge system to easily produce all kinds of equipment.

"Bureau, people have been recruited." At this moment, Li Daqiang walked over.

"Dazhu and Nobita are in charge of training, you bring a few people to buy these things back." Chen Yu handed the other party a list.

"Yes!" Li Daqiang nodded in response.

Towards dusk, hordes of devils came.

"Bureau, the devil is here, and there are only a few miles left from the county seat." Li Dazhu hurriedly ran over.

"Let's go, go kill the devil." After Chen Yu finished speaking, he grabbed the 38 big cover next to him and rushed to the city gate with flying steps.

When he came to the city gate, he saw that the devil was getting closer and closer, and he did not hesitate to pull the trigger and shoot the devil a few hundred meters away.

Suddenly, there were loud gunshots, and one by one the devils rushed to the city gate with a loud shout.

The 38 big cover filled with money is as powerful as a large-caliber sniper rifle, and the bullets that burst out knock down a string of devils.

The miserable and dead appearance of his companions frightened the devils all over their bodies.

In less than half an hour, a ghost of the wing was killed by Chen Yu.

"People in one place are responsible for cleaning up the battlefield and bringing back all the guns and ammunition." Li Dazhu said.

"The people in the second place burned all the corpses of the devils." Li Daxiong said.

After receiving the farewell message, Kazuo Yamamoto, the commander of the Devil Division, was furious and immediately ordered the armored troops to take revenge.

The next morning, the devil's armored troops came to the outside of the county in a menacing manner.

Chen Yu single-handedly slaughtered the devils with a single gun, and at this point, the Environmental Protection Bureau also has a tank.

His armored forces were completely annihilated, and Kazuo Yamamoto asked for the assistance of the air force to attack the county again.

"Bureau, the devil's plane is here." Li Dazhu shouted in a panic.

"Let the people on the city wall retreat, the devils outside, I will deal with it." Chen Yu said.

"Yes, Bureau." Li Dazhu nodded in response.

Chen Yu picked up the 38 big cover, aimed at the plane in the sky, and pulled the trigger again and again.

"Boom, boom!" The sound sounded, and the devil's fighters and bombers exploded in volleys one after another.

In the blink of an eye, twelve bombers and one fighter were blown up, and the only three fighters left by the devil fled in a hurry.

"If you want to run, can you run away?" Chen Yu turned the muzzle of the gun with a disdainful expression and quickly pulled the trigger three times.

A bullet comparable to a large-caliber sniper rifle turned the remaining three fighters into a fireball.

"Eight Tooth Road!" Twelve bombers and four fighters were all wiped out by unknown weapons, and Kazuo Yamamoto was terrified and angry, pulled out his command knife with great force, and gritted his teeth and ordered the ground forces to attack.

"Ten thousand pigs galloping palm!" Chen Yu burst into a shout, and 10,000 energy pigs rushed out.

In an instant, all the devils outside the city were arched to death by the energy pigs and turned into the residue of blood rain in the sky.

The devils lost twelve bombers, four fighters, and a division was completely annihilated by the enemy, for a while, the devil's top brass were horrified, and then, one by one, the devil spies and traitors went straight to the county town that caused them heavy losses.

Calm was restored in the county, and the first environmental protection department was responsible for standing guard, and the second environmental protection department was responsible for public security in the city.

Spending money on a few dedicated technicians, a week later, the first batch of sulfonamides was made.

"Daqiang, invite all the owners of those pharmacies in the county to me." Chen Yu said.

"Yes, Bureau." Li Daqiang nodded in response.

More than an hour later, the owners of the county pharmacy were invited one after another.

"It's here!" Seeing him coming, Li Daqiang shouted.

"Sit down, don't be polite, and don't be nervous." Chen Yu said.

"Lord Bureau, I don't know what you called us here for?" Wang Desheng, the owner of Desheng Pharmacy, plucked up the courage to ask.

"I have a batch of sulfonamides in my hand, and I want to sell them, one for one ocean, which of you wants?" Chen Yu went straight to the point.

"Lord Bureau, how many sulfonamides do you have?" Wang Desheng asked again.

"It's not a lot, only a million at the moment." Chen Yu said indifferently, sulfonamides are now sold for two or three oceans, and there is no market for them, even if you have money, there is no place to buy them.

"Lord Bureau, I want 100,000 sulfonamides." Wang Desheng said.

"My lord, I want 200,000 sulfonamides."

"Lord Chair, I want 50,000 sulfonamides."

"Lord Bureau, I want 80,000 sulfonamides." The owners of pharmacies scrambled to say that they didn't have so much money in their hands, it didn't mean that the people behind them didn't.

"There is a pharmaceutical factory in this seat, as long as you have money, sulfonamides have it, not only sulfonamides, but also penicillin and cephalosporin." Chen Yu said with a smile on his face, for him personally, making money is more important than killing devils.

As a passer-by, he will leave this world as soon as the travel time is over.

Things like defeating devils, saving the common people, and dominating the world can be completely lost to Li Daqiang.

It is no problem to use money to charge a few almighty scientists, and it is no problem to build guns, artillery, satellites, and rockets, it is just a matter of taking a little more time.

"What is penicillin, and what is cephalosporin?" Wang Desheng asked curiously.

"Penicillin and cephalosporin, like sulfonamides, are anti-inflammatory drugs," Chen explained.

"My lord, how do you sell penicillin and cephalosporin?" Wang Desheng asked again.

"Penicillin is one for two oceans, and one for cephalosporin." Chen Yu said.

"Lord Bureau, when will we get sulfonamides?" Wang Desheng asked again.

"When you send Dayang over, I will give you sulfonamides whenever I want, pay the money with one hand and deliver the goods with the other, Daqiang, give them a hundred sulfonamides each." Chen Yu said.

"Yes, Bureau." Li Daqiang nodded, and asked people to bring some sulfonamides over and distribute them to the pharmacy owners present.

Chen Yu turned around and left, and continued to process machine parts, sulfonamides were made, penicillin and cephalosporin, but they hadn't been made yet.

The next morning, the owners of pharmacies rushed over with boxes of oceans.

In the current world, a small yellow croaker weighs about 31 grams, an ocean is about 26 grams, and a hundred oceans can be exchanged for three small yellow croaker.

According to the exchange ratio of the system, three small yellow croakers can be exchanged for paper money, and 13,950 yuan can be obtained. One hundred oceans can be exchanged for Han banknotes, and you can get about 10,000 and 400, and the difference is only more than 3,000.

After Chen Yu thought about it, there was no requirement to settle the bill with gold, anyway, just don't use paper money, the amount of gold is limited after all, there are very few people with gold after all, even if he only accepts gold, he can't make much difference.

(End of chapter)