In this strange world, I am surrounded by Valkyries

Cao Bin complained in his heart.

Chapter 211 Deadly Scissor Kick

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Chapter 212: The Black Box of Pre-Civilization

After getting such an answer from Ying, Cao Bin didn't know what to say.

If I remember correctly.

The black box was a tool used by the previous civilization to seal the Hiyomaru, and it was definitely not used to save her...

"No, maybe what Sakura meant was that the thing could save Ling from the red lacquer drum."

Cao Bin was thinking in his heart.

But Kosmo gave an answer that as long as the method of beating the drum is used, it will be enough to release the Feiyuwan.

Why is Sakura still determined to find the black box?

Cao Bin was a little confused.

So......

If you don’t understand, just ask.

Cao Bin said: "Sister, isn't the black box used to seal the Herrscher? Why...you said it can save Ling?"

One hand was wrapped around the man's neck.

Ying, with her other hand ready to give directions at any time, quickly raised the corners of her mouth.

"That's right... hehe... the black box is used to seal the Herrscher."

"Just use it..."

"Use this to remove the source of pollution from Ling's body, and my sister can be saved."

Ying rattled off a long string of words.

New doubts arose in Cao Bin's mind.

"Sister... from what I know, once the source of contamination has been chosen as a host... it cannot be changed."

"Cannot be changed? Haha..."

Sakura let out a rather cold laugh.

Cao Bin said in a pinched voice: "Sister, did I say something wrong?"

"You are right... After the pollution source selects the host, it cannot be changed. However... do you know the principle that there are fifty great ways, forty-nine of which are derived from heaven and only one is hidden by man?"

The fox-eared girl suddenly started quoting from classics.

Does Cao Bin know?

As a time traveler, he had certainly heard of this sentence.

This kind of lines can be found in almost all the ancient novels about cultivating immortals.

"Sister, what I mean is..."

Cao Bin's eyes flickered.

Ying continued: "Ling is different from the others. She has abilities similar to the Pollution Source... plus the black box used to seal the Herrscher of Corrosion, she can... definitely drive the enemy away."

Cao Bin was surprised to get such an answer, and the sense of disobedience in his heart became stronger and stronger.

Now Sakura...

It felt a little bit surprisingly normal.

Ling's stimulation effect is amazing.

Cao Bin thought to himself, "I actually never asked about her before..."

"But that's normal. After all, I rarely come to the underground training ground. What's more... maybe I've already asked."

"It's just that I lost my memory, Herrscher of Knowledge... Alas..."

Thinking of the second master who was imprisoned in Hyperion.

Cao Bin has a toothache.

Having your memory absorbed is just too uncomfortable.

Cao Bin didn't know how many times he was sucked.

I don’t know how many precious memories I have lost.

He pondered for a moment and shook his head to clear away the chaotic thoughts.

Cao Bin raised another question, saying, "But if that's the case...won't the pollution source escape?"

"No...it can't escape, hehehe...it can't escape...I will deal with it, hehe..."

Sakura's voice became even sharper and harsher.

This is really a torture for Cao Bin.

But now I have to hold back.

Regarding whether Sakura can solve the source of pollution.

Cao Bin was very concerned about this, but unfortunately no matter how he asked, the other party would not express his thoughts.

It was just a futile effort.

As expected, it’s the familiar yandere Valkyrie.

"Can I trust Sakura?"

Cao Bin is not clear at the moment.

Anyway, whether you believe it or not.

The black box should be in hand by now.

It would be a waste if you don’t take the equipment dropped by Yingjie.

And maybe that thing is the great treasure that Cao Bin will use to deal with the Ruler of Erosion in the future.

As the time goes.

Cao Bin was getting closer and closer to the center of the underground training ground.

Mentioned before.

The underground training ground is divided into five areas.

ABCDE.

The last four areas are for ordinary Valkyries.

Area A is a special area that only S-class Valkyries like Theresa are qualified to use.

Nowadays......

Under Ying's command, Cao Bin came to Area A, where there was a steel gate.

As long as you pass through this door, you can enter the real S-level Valkyrie training area.

Normally Cao Bin can't get in.

As an ordinary C-rank Destiny Knight.

I can only move around the periphery of Area A and cannot enter the core area at all.

This is also an area that cannot be explored.

"What's next?"

Cao Bin, carrying Ying on his back, looked quietly at the steel gate in front of him.

The fox-eared girl touched her waist.

Then he pulled out a magnetic card with a metallic texture.

"Don't be afraid... Sister, you can use this to open the door. Just go to the sensing area over there and swipe it."

Ying waved the magnetic card in her hand in front of Cao Bin, and he reached out to take it.

According to the fox-eared woman's words.

Cao Bin ran to swipe the card.

Beep——! ! !

A long, rapid beep suddenly sounded.

An electronic sound followed.

"Authentication successful, Shanna Yingjie - Ying, welcome to the thirty-third underground floor."

Cao Bin was stunned. He must have heard it wrong.

What is the thirty-third underground floor?

And why is it the underground training ground of St. Freya Academy?

He can also directly call out the names of the Thirteen Heroes of Chasing Fire.

Judging from the current situation.

No one at St. Freya Academy knows Ying Jie's true identity.

Whether it is Theresa, Wuliangta Jizi or the mysterious leader of the Anti-Entropy Alliance, Walter Yang.

"The only place that reminds me of the 33rd floor underground..."

"Could it be an underground base built by a previous civilization to fight against the collapse?"

"But this is clearly not the place..."

Cao Bin's mind was a little confused for a moment.

The steel gate is slowly opening.

"Walter Young will leave the Star of Eden in the underground training ground, and Sakura will appear here."

"There is a reason for everything."

"Black box..."

For some reason, Cao Bin always felt that there was a deeper secret hidden behind this door.

Maybe it's more than just a black box.

The sound of mechanical gears turning was clacking.

The steel door opened completely, dust rose up, and a rather corrupt smell greeted us.

Compared to other places in the underground area.

The smell is stronger here.

Cao Bin looked around with a flashlight and found that the darkness inside the gate was deeper than outside.

It was as if a monster was devouring the light.

Even with a light source at hand.

Cao Bin still couldn't see how far the distance was.

It felt like darkness everywhere.

"My sister... let's get going quickly and don't waste time."

Sakura squeezed her legs slightly together as if she was riding a horse.

Cao Bin came back to his senses.

"Um......"