Doomsday Rebirth: The heroine comes back with the system

The crowd fought their way to the fifth floor.

During this period, Xu Le was shocked many times by the fighting power of Cheng Su and others.

He originally thought that Shi Yan was already very powerful.

I never thought I would meet such a team today, where every member has special skills and the captain is even more awesome.

There is no elevator in this building, so everyone has to walk down.

The space in the corridor is narrow and there are many zombies.

Shi Yan was always walking in the front to clear out the zombies, and Xu Le was second.

Following in the middle were Cheng Su and others.

Yin An walked at the end, collecting crystal cores and supplies.

Each floor of the Medical Research Institute has different medical rooms and medical information. Yin Anquan stored all of them in the space in case of future need.

The sound of a group of people killing zombies alarmed the zombies downstairs, and countless zombies began to rush upstairs following the smell and sound.

The door between the fourth and fifth floors kept banging.

"Ow-!!"

"Ow-!!"

"Bang bang bang!!"

The roars and crashes of the zombies were deafening.

Yin An and others stood in the corridor and looked at the precarious door.

It is certain that once this door is opened, countless zombies will rush in.

"I'll go first, you guys step back a few steps." Shi Yan wiped the blood-stained Tang sword and said calmly.

Cheng Su and others slowly stepped back, looking at Shi Yan's back.

Their favorability towards Shi Yan skyrocketed.

He was brought here by Yin An to work, but he always rushed to the front.

Now faced with such a dangerous situation, he also took the lead.

I have to say, very reliable.

Shi Yan opened the door.

The zombies piled up like a hill and pounced on them with their mouths wide open!

Each of them had gray pupils and a mutilated body. Some zombies were dragging half an arm, and some had a big hole in their stomachs with their intestines hanging out.

Accompanied by a strong smell of rotting corpse and blood.

They all rushed towards Shi Yan!

I saw a circle of light appear under his feet, surrounding him completely.

This beam of light was like a transparent wall, blocking all the zombies' attacks.

Shi Yan swung his Tang Dao at the pile of zombies, then lowered his body and spun with his sword, blocking the attacks of several zombies.

Obviously a martial artist.

There was a hint of appreciation in Yin An's eyes.

Cheng Su and others immediately followed and joined the battle!

"Brother Shi Yan, your swordsmanship is pretty good. Who is your master?" Cheng Su asked during a break in the fight.

"I learned some things secretly, but it's not professional." Shi Yan raised his head and glanced at Cheng Su, then answered with a smile, a hint of nonchalant ruffian at the corners of his mouth.

There were six people in the front killing zombies layer by layer, so Yin An hardly had to take any action.

She watched at the end, occasionally electrocuting a few zombies.

"Why can't this zombie be killed?" Jiang He's shocked voice came.

Yin An looked over.

Jiang He punched a male zombie in the head, his skull shattered and his brains splattered everywhere!

A normal zombie would be killed by such a punch.

But the zombie seemed fine, and still turned around and rushed towards Jiang He, even faster!

His brains splattered in the air, looking incredibly weird and disgusting.

Soon all his brains flowed out, leaving a big hole on the top of his head, but he still attacked Jiang He at an extremely fast speed with his mouth wide open!

Upon seeing this, Ren You immediately stabbed him again!

His knife skills were extremely fast, and he cut off the zombie's neck with one stroke!

The zombie's head fell off with blood!

Just when Jiang He breathed a sigh of relief, the headless body of the zombie grabbed Jiang He's arm tightly!

His head that fell to the ground still had its gray eyes wide open, and its big mouth was still trying to bite Jiang He!

"Ah!" No matter how many zombies Ren Jianghe killed, he still screamed in fright when he saw such a weird scene.

"This is a neuro-mutated second-level zombie. Don't panic. Just chop him into pieces and kick him away."

Yin An's calm voice came.

In her previous life, she hated this type of zombies the most. They were not difficult to deal with, but they were extremely disgusting.

With Yin An's command, Jiang He quickly calmed down, chopped the zombie into several pieces and threw it far away.

Soon, the team reached the third floor.

This is the floor where the base mission is located.

Yin An aimed at a room and kicked it open!

The five men inside were huddled in a corner with knives in their hands, looking terrified.

When they saw Yin An, they all lost their temper and relaxed: "Yes...it's a person! A living person!"

The five men rushed towards Yin An excitedly: "Are you here to save us?"

"No."

Yin An said coldly, walked around a few people and went inside, glancing at the research machinery and file cabinets inside.

"Boss, this floor has been cleared as well."

Cheng Su and others also walked in, they were all sweating and panting.

Jiang He took out a few bottles of water from his backpack and gave them to everyone.

The five men stared in amazement when they saw the water.

Two of the men walked right up to take it.

"Hey, brother, this is very rude of you!" Cheng Su pushed away the two men who were approaching him and said seriously.

These supplies were obtained by the boss, and they treasure them very much, so there is no reason to give them to others for free!

"We haven't had water for days!"

"Please, give us a bottle!"

The five men were talking to each other. They saw that Cheng Su and his companions were not likely to be easily bullied, so they did not dare to confront them head-on and could only beg them.

"Boss." Cheng Su could only look at Yin An and wait for her decision.

Yin An glanced at the five men and saw that they were all wearing research uniforms. They were obviously researchers here.

"Give them two bottles of water, and you guys go out and wait for me." Yin An said lightly.

"Okay, boss!"

The five men were very excited when they heard Yin An say this, and hurriedly followed Cheng Su and the others out.

The door was closed by Cheng Su.

Yin An began to observe carefully in the laboratory.

Put everything you can into the space.

"What are you going to do?"

Just at this time.

A strange male voice sounded.

When Yin An looked up, he saw that the door that was originally closed had opened a crack, and a researcher was looking at him through the crack.

His eyes were buried in the shadows, and his expression could not be seen.

Yin An frowned slightly.

"What are you doing? Don't disturb the boss!" Cheng Su's voice was heard outside, and then the door was slammed shut.

Yin An looked at the tightly closed door, his brows furrowed more and more.

These five people.

Not quite right.