After some twists and turns, Chen Zong finally agreed, and was willing to use the way of accepting apprentices on behalf of the teacher to bring Gu Shuang into the door wall, and when he heard this, Gu Shuang hurriedly said: "The disciple is willing!" ”

Hearing this, Chen Zong smiled and nodded...

.......

After Chen Zong agreed to accept the apprentices on behalf of the master and put Gu Shuang in the door wall, Gu Shuang and Ling Hurong got up and said goodbye, preparing to come again tomorrow and officially worship the master to learn swordsmanship.

Originally, according to Chen Zong's idea, since he wanted to accept Gu Shuang's entrance wall, it was natural to choose a good day and auspicious day, put on a big incense hall, invite the grandfather, and then gather people who everyone knew, announce it, make it grand and formal, but Gu Shuang didn't have so much time, and there were five days Gu Shuang had to go to the meeting alone to negotiate with the steel family, Chen Zong heard the reason, knew the severity, and set the day of apprenticeship on the next day, otherwise, Gu Shuang had to wait for seven or eight days before he could go, because seven or eight days later, it was an auspicious day.

After leaving Chen Zong's house, Gu Shuang and Ling Hurong went to the City of Technology and Development, preparing to borrow a place here to test weapons and test their strength.

The road was unimpeded, and as soon as the people here learned that it was Ling Hurong and Gu Shuang, they turned on the green light and emptied a huge field for Gu Shuang to test.

"How are you going to test your strength?"

At this time, Gu Shuang and Ling Hurong were standing outside a clearing with solid walls on three sides, and Ling Hurong asked Gu Shuang after glancing at the countless dense craters on the three walls of the venue.

When Gu Shuang heard this, he thought for a while and said, "Let's start with speed first!" ”

"Hmm!" Ling Hu Rong responded, and then pointed to a flashing red machine next to the venue and said, "This was originally used to test the speed of bullets per second, I think, it should be suitable for you!" ”

Gu Shuang nodded, and then his mind moved, and after retracting the black substance, he began to undress, preparing to test how much stronger he had become without the help of the black substance.

On the side, Ling Hurong saw Gu Shuanger taking off her clothes without saying a word, she was stunned, her face was ashamed, and she said with a red face: "What are you undressing for?" ”

"Huh?" Gu Shuang was stunned when he heard this, his hand that was taking off his shirt stopped, and after a strange glance at Ling Hurong, he said, "Test?" Not taking off your clothes has an effect. ”

After that, Gu Shuang continued to take it off, and after a while, a military uniform used to cover the black substance outside was taken off, and then Gu Shuang casually threw it to Ling Hurong, who was standing aside and stunned.

Then, Gu Shuang was ready to take off his pants.

Suddenly, Gu Shuang felt that something was wrong, and turned his head suddenly, Gu Shuang found that Ling Hu Rong was shyly tugging at his clothes, his face was flushed and his head was lowered, seeing this, Gu Shuang was stunned, and then opened his mouth wide in surprise.

"Ms. Linghu Rong, you... What's wrong.....? ”

After Ling Hu Rong quietly glanced at Gu Shuang's strong muscles, she felt that her breathing was a little uncomfortable, her face was very hot, and she gritted her teeth, Ling Hu Rong endured her shame and said, "I, I'm waiting for you outside!" You're done testing yourself out! ”

Saying that, Ling Hurong grabbed Gu Shuang's clothes and ran out in shame.

Seeing this, the corners of Gu Shuang's mouth twitched, and after Ling Hu Rong ran out, Gu Shuang shook his head and began to take off his pants.

"People in their forties, why do they still look like little girls? Am I ashamed to be like that? Haven't you ever seen a man shirtless? ”

Thinking of this, Gu Shuang shook his head with a smile, and suddenly, Gu Shuang seemed to think of something, and was suddenly startled! He raised his head and looked at the place where Fox Rong had disappeared.

"She's still like this in her forties, isn't she....?"

Inadvertently, Gu Shuang knew Ling Hurong's second secret again.

After suppressing all the distractions in his heart, Gu Shuang's pants were thrown away, and he exhaled a long breath, at this moment, Gu Shuang's whole body was covered with nothing but a pair of big pants.

"The green liquid of life given by Lu Yiluo has made my physical fitness much stronger, but I don't know how much......

Thinking of this, Gu Shuang moved his limbs, and after playing a set of military body punches, Gu Shuang finished the warm-up exercises, and slowly squatted down, looking intently ahead.

"Monster classification, from SSS to F, F is the level of ordinary people, up is the E level, E level is the athlete's level, and then up is the threshold of the monster, D level, you need to reach the point of ten meters per second, I used to stay in the military department for many years, and my physical fitness should be at the E level, not to the point of ten meters per second at the D level, however, after the green liquid of vitality, I feel that I should stand on the threshold of the D level!"

Thinking of this, Gu Shuang's muscles slowly relaxed, and then as soon as the core muscles of his thighs exerted his strength, he saw Gu Shuang's 'bang' pop out more than ten meters away!

At this moment, outside the venue, Ling Hurong ran back and was hiding in a corner, pinching Gu Shuang's coat, blushing, lying in the corner and watching secretly.

She originally wanted to come back and return Gu Shuang's clothes, but she didn't expect Gu Shuang's speed to be fast, and she had already taken off only a pair of big pants to start the test.

Seeing this, Ling Hu Rong was too ashamed to go in to see it, so she had to hide in the corner and pray that Gu Shuang would end quickly.

But when Gu Shuang started the test, Ling Hurong couldn't help but be curious, lying in the corner to see how powerful Gu Shuang was, and then saw this scene.

"His muscles... It's so sturdy! I really have eight-pack abs...."

Gu Shuang's strength made Hu Rong not pay attention, but was attracted by Gu Shuang's strong muscles and couldn't take her eyes off.

In the next second, Ling Hu Rong looked at Gu Shuang's clothes in her hands, and couldn't help but feel hot, and couldn't help but carefully put Gu Shuang's clothes under the tip of her nose and sniffed it.

After smelling the residual smell of Gu Shuang on her clothes, Ling Hu Rong realized what she had done, and she was extremely shy, and she couldn't wait to find a crack to get into it immediately, only to see her hurriedly drop her clothes, cover her face and run out.

In the center of the field, Gu Shuang was checking his results at this time, fifteen meters per second, this score has reached the threshold of a monster, D-level, and then C-level, fifty meters per second.

"Fifteen meters per second?"

Gu Shuang nodded, clenched his fists, and had a new understanding of his strength.

"It seems that the Vitality Green Liquor has helped me improve my physical fitness several times!"

At this moment, Gu Shuang heard a series of footsteps, and his instinctive thoughts were released, and then, Gu Shuang saw Ling Hurong, who was covering his face in shame and running outside in a panic.

"Why did she come back again?"

After thinking about it, Gu Shuang put Ling Hurong's matter aside, and then with a thought, the black substance in the mass core instantly turned into a set of black clothes, wrapping Gu Shuang's whole body.

"With the help of black matter, my strength can cross the level line, but black matter needs to consume the energy in the mass core...."

Thinking of this, Gu Shuang's mind moved again, and the vortex on the mass core began to accelerate the absorption of various energies in the surrounding air to replenish himself, but the energy he could absorb was pitiful.

"When you're at the base, the mass core absorbs energy much slower than when you're on the ground......"

In the past few days, Gu Shuang can clearly perceive that the speed at which the mass core absorbs external energy has slowed down, in the past, Gu Shuang was on the ground, wrapped in black matter, and advanced at a high speed of five hundred meters per second, but it can be offset by the efficiency of the mass core to absorb energy independently, but now it can't.

"Is it because there is so little free energy in the air underground? Or is it that the mass core loves the various radiant energies in the universe? ”

In the underground, there is basically no radiation energy, but on the ground it is different, the earth's ozone layer is broken, and all kinds of cosmic radiation directly irradiates the earth, so that all kinds of radiation on the earth's surface are diffuse.

Underground, in order to create a suitable living environment for people, all radiation is blocked from the outside world, so there will be no cosmic radiation energy underground.

"It seems so..."

Thinking through the key points, Gu Shuang began to test the black matter, and the energy in the mass core was enough for it to test the basic strength of the black matter.

With the help of black matter, Gu Shuang's strength almost instantly turned into a god and demon, without the help of black matter, Gu Shuang's speed was fifteen meters per second, but with the help of black matter, the speed of one thousand meters per second, the strength increased by tons, and the defense reached an exaggerated level, and the bullet hit the body like tickling.

"S-class! A real S-class! I didn't expect that the quality core was so magical, and the black substance created made me, a person who had just stepped into the monster realm, obtain the power of S-class terror in advance! ”

After tossing down, the vacant land was also demolished into ruins by Gu Shuang, but at this moment, Gu Shuang had an all-round understanding of his strength!

Clenched his fist, Gu Shuang found that the mass core still had a little energy, and suddenly thought of the main function of the quality core, the main function revealed by the special species Chong Shenren, the weapon!

With a thought move, the black substance was sucked back by the mass core, and then the body of the mass core broke out of its palm, turned into a heavy black long knife, and fell to the ground.

At this moment, Gu Shuang looked at the black knife with the tip of the knife on the ground, and an inexplicable look flashed in his eyes.

He was still on the ground the same as the last time, still unable to lift the knife.

However, Gu Shuang still wanted to try its power!

"Although I still can't fully lift it, with my D-class monster-like physical fitness, I can still wave it a little!"

Gritting his teeth, Gu Shuang held the knife in both hands, blushed, and used all his strength to finally lift the long knife a little.

Then Gu Shuang held the knife in both hands, like a sway, from left to right, in a very small arc, towards the ground under his feet, and swung a knife.

Swish!

A flash of knife light disappeared, and then, Gu Shuang saw the ground, and a big crack was opened, this big crack was less than ten centimeters away from Gu Shuang's toes, because Gu Shuang waved it from left to right, so this big crack spread from left to right.

Eventually, a crack was left in the solid wall directly in front of it that went straight up and disappeared.

Gu Shuang climbed next to the wall, let go of his mind wave and looked at it, and found that he hadn't detected its depth...