Doomsday Rebirth: The heroine comes back with the system

Separated by a wall, two worlds.

The zombies outside the wall were gnawing on human flesh. Three men and one woman were all killed, while Yin An and his group inside the wall were feasting on a table of delicious food.

Yin An felt a warm feeling in his heart as he watched his teammates wolfing down their food happily.

She will protect her people well.

She wants to become stronger and provide a safe world for the teammates who trust her!

"Ding-ding-"

The European clock on the wall made a pleasant sound. Yin An looked up and it was exactly twelve o'clock!

The zombies are starting to mutate!

With a glimmer of excitement in his eyes, Yin An looked at the people who had eaten and drunk their fill, and said in a deep voice: "Get ready, follow me, and go out to fight the level 2 zombies!"

Upon hearing this, everyone immediately switched to alert mode, restrained their relaxed expressions, and checked their clothes and weapons.

"Level 2 zombies have different forms of enhancements. If you are careless, you can easily lose your life, so all of you follow me and stay highly alert!"

Yoongi gave the order and stood up and walked towards the door.

"Yes!" Cheng Su and others responded.

This included Xiao Rui, her young face full of seriousness as she followed Yin An happily.

Yin An turned around and looked at Xiao Rui, his expression softened a little: "Xiao Rui, you are still young, you wait for us here."

"No! Sister Shengsheng, Xiaorui, don't be helpless. Didn't you tell me when we were having dinner just now that my abilities are powerful? I can protect you!"

Unexpectedly, Xiao Rui shook her head very firmly and insisted on following.

Yin An's heart sank slightly. The reason why she chose to save Xiao Rui was indeed because her ability was very special and would be helpful to her in the future.

To put it more clearly, she was just a useful tool in her eyes, while the little girl in front of her was so brave and said she wanted to protect herself.

That's right, although going out to fight is dangerous, it can also help you grow quickly. At worst, I just have to keep an eye on her.

Yin An nodded: "Okay, follow me, and remember to be smart."

The zombies outside the door were already excited by the movement inside and were banging on the door.

Yin An pulled the door hard, and the zombie fell down suddenly due to inertia, and stabbed Song Nian's long knife straight into it!

Ren You quickly dealt with another zombie, and Yin An kicked the zombie away and walked out.

People's screams could be faintly heard at the foot of the mountain. Yin An looked through the bushes and saw a huge zombie chasing two humans. This zombie's body was twice as big as an ordinary zombie, so it naturally ran much faster. He pounced on the two humans in just a few steps, and pressed the two of them down with his huge body, biting one of them by the neck with his big mouth.

It is obviously a second-level zombie with a mutated body shape.

Cheng Su and others were shocked to see such a big zombie. Although they had been mentally prepared, they still felt a little nervous when they saw such a weird zombie.

"I'm going to deal with this zombie first, you guys stay here and study!"

Yin An said in a deep voice, then jumped out of the bushes and ran forward.

"Roar!"

When the zombie heard the sound, he turned his head suddenly, stared at Yin An with his gray eyes, and turned around to pounce on her!

The evolved second-level zombies have improved in all aspects, including hearing, sense of smell and IQ!

No longer as easy to deal with as level one zombies.

"Whoosh!"

Yin An's grappling hook shot out at high speed behind the zombie. She tightened the grappling hook and flew forward towards the zombie. When she was five meters away from the zombie, the lightning in Yin An's hand exploded, and a fierce bolt of lightning with a blue-purple light struck the zombie fiercely.

"Ho ho ho!!!"

The zombie was obviously electrocuted and couldn't move, its whole body was convulsing. Yin An's eyes flashed with cruelty, and he slashed with the dagger as he passed by the zombie.

"Snapped!"

The zombie's head fell to the ground.

The head is as big as two human heads, which is very scary.

Yin An moved his fingers, and a second-level crystal core appeared in the space.

Yin An took a deep breath and turned around, only to see his teammates staring at them in amazement.

"Boss, this is totally useless. Your fighting ability is inhumane!"

Cheng Su yelled in dissatisfaction.

Yin An's heart suddenly shuddered, he looked to the side, and saw a zombie rushing towards him!

This zombie’s running speed is different from other zombies. He is extremely fast and can run ten meters in almost an instant!

"Speed-type mutant level 2 zombie!"

Yin An shot out a grappling hook towards Cheng Su and the others: "You, in groups of two, go up and fight the zombies!"

It's time to give them some exercise!

"Oh my god!" Ren You rushed out like the wind. He could also see that this zombie was faster. As a person with speed-related abilities, he was most suitable to deal with this zombie!

"Brother Ren, take me with you!" Cheng Su shouted and rushed out.

Maybe the fighting here was too loud, and the zombies from all around slowly gathered over!

Among them, there are about a dozen level one zombies and two level two zombies.

The two level 2 zombies are a strength-mutated level 2 zombie and a skin-hardened level 2 zombie.

Yin An handed the power-mutated level 2 zombie to Song Nian and the other two, while he went to deal with the other zombies.

Song Nian, Jiang He and Xiao Rui, three girls, formed a team and fought against the second-level zombies with power mutation.

Yin An observed them while clearing out all the remaining zombies.

During this period, Yin An collected all the crystal cores.

Her space mission urgently requires 100 secondary crystal cores to upgrade.

"Ren You, your speed is not slower than his. You need to be able to predict his movements!"

Yin An stood aside and gave orders.

"Xiao Rui, your poison is also harmful to humans, so you must stay as close to the zombies as possible while maintaining your own safety!"

"When fighting against zombies with mutations of strength and quantity, remember not to get touched by them! Otherwise, the consequences will be serious. Their strength is suppressive!"

.........

With Yin An's command and teaching, the five people became more and more adept at dealing with zombies, and soon killed two mutated level 2 zombies.

"Too slow, not enough."

Yin An was very dissatisfied. She shook her head and continued to lead the team to look for the second-level zombies:

"Keep practicing!"

"Yes! Captain!"