Just now, Zhang Yu saw a familiar figure flash past the door.

Even Zhang Yu recognized that figure!

Arriving at the main street, Zhang Yu looked around, pretended that nothing had happened, and walked in the direction of that person.

The man was tying his shoelaces, and it was a long time before he could tie them, seeing his clumsy movements.

Zhang Yu knew that the man was intentionally putting on an act.

The purpose was to lean over and observe the surroundings to see if there were any suspicious people.

When he looked at Zhang Yu, Zhang Yu took out his phone and dialed a number. He pretended to call Zhang Yu casually.

In fact, Zhang Yu's phone had always been in flight mode.

He just pressed the power button while the phone was at his ear and turned off the screen.

Then he pretended to chat loudly and casually looked around.

That person didn't notice Zhang Yu as he walked towards a snack bar and ordered some food before starting to eat.

If he hadn't known that person's personality, he probably would have thought that Ye Zichen was shopping.

Zhang Yu followed him at a leisurely pace. From time to time, he would even hide in order to avoid his detection.

After all, if an unfamiliar face was following him around, even if he wasn't on guard, he would most likely be suspicious, right?

Three hours later, Zhang Yu arrived at the border between the west side of the city and the south side.

Because there was no one supervising this place, it became a gathering place for the local gangs. Originally, there were very few people who came here, but now, it was even rarer.

The person in front suddenly turned around, without any warning.

Zhang Yu, who was hiding in the shadows, was shocked. Had he found out?

Fortunately, he had already changed his clothes into the black suit he had bought on the way here. Otherwise, the original color of the clothes would be too obvious in this dark environment.

Under the dim light, the man only took a quick look.

"So it's just a temporary warning?"

Zhang Yu knew that the closer one was to the center of the city, the higher one's vigilance and alertness would be.

"Looks like we're almost there." Zhang Yu thought.

However, Zhang Yu did not follow him. He knew that the lad was probably observing them from the shadows.

This was because everyone had a kind of inertia. The closer they were to the final goal, the more anxious they became. If he went over now, he would probably be ambushed by the person lying in ambush nearby.

Fortunately, I knew of his existence, but he did not know of mine.

Therefore, according to Zhang Yu's understanding of that person, it wouldn't be long before he left.

Sure enough, five minutes later, Zhang Yu heard faint footsteps in the distance. It seemed like he had already left. However, in order to be safe, Zhang Yu had to wait for another ten minutes before he could follow.

In front of him was the factory, and the footsteps had also disappeared from there.

At this moment, the sound of metal scraping could be heard from inside the factory.

Zhang Yu didn't go forward immediately. Instead, he walked a few rounds around the factory. After confirming that there was no danger, he carefully entered inside.

Inside, it was pitch black. Nothing could be seen.

Zhang Yu remained calm as he picked up a rock from the ground and threw it into the distance.

"Clap clap clap —"

The stone fell to the ground with a crisp sound.

Zhang Yu only heard two air-piercing sounds as the sound of metal rapidly hitting the ground came from the place where he had previously thrown the stone.

Although it was only two short sounds, it was enough for Zhang Yu to identify the source of the sound.

After two groans, Zhang Yu looked at his hand in satisfaction.

The man had tried to sneak attack him, but he had been found out and defeated in a single blow.

Zhang Yu found two Type 95 handguns from their bodies and put them on his waist.

Pulling open the metal door leading to the underground, the sound of metal scraping against metal once again rang out, startling Zhang Yu!

So the sound just now was made by this thing!

"What the hell! I was almost scared to death!"

After reaching the lowest floor, Zhang Yu was blocked by a tightly locked iron gate.

Just as Zhang Yu was about to forcefully open the iron door, he heard a familiar voice — —

"Doctor, when can we mass produce?"

It was precisely this thing that had caused him to lose all his strength and ultimately caused his own people to lose their lives! Zhang Yu gritted his teeth.

"I need at least three years!" said the doctor.

"Why would it take so long?"

"This is only a conservative estimate!" If you include all of the variables, even ten years might not be enough! "

"Alright then!" How many finished products are there? I'll take it back and deal with it. "

"I only have 105 pills here. You can take 100 pills and return to report. You can leave the remaining 5 as the sample."

"Don't even think about going anywhere!" A voice suddenly sounded.

The young man stared blankly for a moment before reaching into his pocket. All of a sudden, he felt something on his head. He felt a great sense of danger spreading throughout his body. Even his hands had stopped moving.

"Bang!"

A gunshot rang out in front of the young man.

"Inside you bear!" You actually dared to sneak attack me. Fortunately, I dodged quickly! "

Another shot rang out and the doctor fell, bleeding from a bullet hole in his chest.

"What is it? You don't even know how to greet an old acquaintance? " Zhang Yu teased.

"You, you're Zhang Yu, boss Zhang?"

The young man asked shakily, "But, aren't you already dead?"

"Humph!" How could laozi die so easily! "

Suddenly, Zhang Yu changed the topic, "Speak! "Who knew it was you!"

Zhang Yu exerted even more force, causing the young man's head to hurt. "It's you, Boss Zhang! It's you, Boss Zhang!"

"The same Boss Zhang who came to the factory to sell medicine?"

"Yes!" "Yes!" The young man quickly replied.

"I advise you to keep your hands still!" The young man immediately stopped what he was doing.

Zhang Yu reached into his pocket and found a mini pistol.

"You want to use this trick on me again? It's still this model. Say, where did you get it? "

"T-Boss Zhang. Boss Zhang gave it to me."

After losing his last line of defense, the young man's tongue was tied.

Zhang Yu looked at the young man with a bit of amusement. Seeing that the young man had completely panicked, he knew that his final protective umbrella had already been removed.

"Hmm, it seems like he treats you pretty well."

Zhang Yu raised the gun in his hand and pulled the trigger.

The laboratory wasn't big, so Zhang Yu quickly searched it all. Other than the experiment tools and the 105 pills that he could not understand, there was nothing else.

Before leaving, he cleaned up his tracks. Looking at the corpse on the ground, Zhang Yu muttered:

"This is only the first step of my revenge. "Boss Zhang, prepare to take on my anger next!"