The 13th floor is different from the ordinary floor. It does not have ordinary classrooms, only four halls and some debris rooms. Each hall looks extremely spacious and is generally used for large lectures, large debates and even large indoor performances. Even hundreds of people sit on it, it does not seem crowded.

Now, the four halls on the thirteenth floor have a feeling of being overcrowded. I am afraid that 90% of the survivors of the entire teaching building are gathered here. It is roughly estimated that there are nearly two thousand. Looking up, all you see are women with panic on their faces, or men with scared tears, or boys with no faces. What spreads between the crowd is no longer panic and anxiety, but a faint despair.

This...what is wrong?

Is the end of the world coming? Or am I having a nightmare?

Why do so many bugs suddenly run out, terrifying and chewing human corpses, my god... Isn't this a peaceful era, a society ruled by law? How come so many classmates die in an instant? Who will tell me that this is not true!

Nearly two thousand people were scattered in the four halls. Although the students were all together, none of them would feel a sense of security at all, but instead shivered. Some only knew how to cry, some were dazed at a loss, and some were slashing crosses on their chests in fear, praying that God would send a heroic angel army to save them.

Unfortunately, at this time, let alone God's angel legion, it was too late to send the eighteen Arhats to the Tathagata Buddha, because they found that a group of green long insects flew out of the window!

These long insects are tied one by one, a bit like silkworms, but they are hundreds of times larger than silkworms. Each end is one meter long and almost twenty centimeters in diameter. In addition, the shiny green skin looks like long winter melons at first glance!

What is even more contrary to biological common sense is that this long insect actually has thin wings similar to bees, flapping rapidly. Even though they are not flying fast, when they are swarming in groups of seventy or eighty heads, everyone is watching the dead!

"That's...what bug is that? It's so disgusting!"

"Who knows what it is? Anyway... they must be very scary, just like the red giant insect that can bite off my roommate's waist in one breath..."

"Ah, they are flying towards our hall, what should I do?"

"Wow, I'm dead, I'm dead! It seems that we're all going to be done! No one can save us!"

"Don't be stupid, don't be stupid. Those insects are invincible. They are so cruel. Humans are not their opponents at all...Atao, let's jump off the building and die..."

"No, no! Are everyone just waiting to die? Absolutely no, we must do something if we want to survive!"

"Boy! Boys quickly organize resistance!"

"Girls back! Back!"

"Don't panic! There are five or six hundred people in our classroom, and the insects are only about twenty, and we have a great advantage in military strength! As long as we unite and fight bravely, we can still fight back those insects!"

"Hold it! This is the used chair I found in the debris room... and the wooden sword of the Kendo Club, and strong boys are given priority equipment!"

For a moment, all the students and teachers in the four halls were boiling and entangled in a mess. Even some old professors desperately organized some boys to form a self-defense regiment, it would not work very well. After all, the morale was so low that it was too bad, and the weapons were super simple. The hall was full of crying and screaming. How could we raise enough courage to form a student self-defense regiment that could be fought for?

Soon, the green bugs had already flew to the window!

Everyone was in a sudden mood! He held his breath!

The window is a layer of high-quality reinforced glass, with both thickness and hardness reaching the standard. Even footballs played with all their strength must not cause any loss to such windows - those insects that look like silkworms should not break the window, right?

The higher the hope, the higher the despair. It turns out that the insects from the insect world are definitely beyond everyone’s imagination!

When the students saw the green insect's mouthparts that were like funnels spraying out a stream of liquid, they were all shuddered!

But when the alloy glass sniffed, black smoke came out, and the glass quickly melted into interlocking holes!

"Impossible! Strengthened glass is not metal, so how can it be corroded?"

"What a terrifying acid!"

"It's over, it's over. The liquid sprayed out is definitely dozens of times that of super concentrated acid than aquamarine. If a drop on the skin is stained, it may quickly corrode half of the body..."

"Fuck! That's a big deal to resist! No, absolutely not. If you fight against that kind of insect full of acid, if the acid is splashed on your body... I will be gone and completely gone. Ah, you should use this wooden sword!"

At this time, the reinforced glass had corroded into holes that were large enough, and the first green bug flew in!

Everyone's scalp was numb and they couldn't help but retreat, but a brave boy immediately raised a chair and threw it over. The sulfate worms did not fly fast, and they were not too alert, so they were hit on the head by the flying chair and made a "gurgling" sound.

"Wow! Well done!"

Everyone was shocked by morale. It seemed that the bugs were not invincible. As long as they launched a "range attack" on them carefully, they could still be harmed!

However, the sulfuric acid worm was not hurt much, but was angry. With a squeak, it raised its head and the conical mouthpiece, which was a foot long, sprayed a rapid mass of water towards an old professor closest to it!

The old professor swayed, and the next moment his chest began to burn out ashes, completely destroyed, and then spread from the chest to his head, abdomen, and limbs. In less than three seconds, there was only a pool of fishy yellow and turbid liquid left on the ground, and there was no evidence that the old professor survived!

The students looked gray and they thought it was disgusting enough to bite the corpse inch by inch, but only after witnessing humans being corroded by sulfate insects, they realized that there was such a creepy way to die in the world!

Good God, how could you allow such a cruel sulfate worm to appear in the world...

In an instant, the students' fear had reached their peak.

However, when fear reaches its peak, humans will have a polarized attitude, either they will be completely scared and overwhelmed, or they will no longer know what fear means and will fight to the death!
Chapter completed!