Ziyang was a line slower than his partner, so when he jumped over the third-floor railing, he accidentally hit Keller's back.

"Hmm, what are you doing?" he tapped his finger on Keller's breastplate, easily stopping himself from castration, "What's wrong?"

Keller replied with a "silence" gesture and quietly pointed to the window of the large classroom in front of him.

When Ziyang brushed away the hair on his forehead and looked in that direction, he quickly showed the same caution as Keller: "Why is she here?"

——The beautiful side face exposed in the window is the only existence in the East Courtyard that can make the two of them feel afraid, the headmaster He Minzheng.

The course that interests He Minzheng is also really amazing!

Ziyang and Keller didn't dare to show off their tricks anymore, but honestly slipped in through the door behind the classroom, accompanied by six or seven students who had just come up from the second floor. These guys didn't know what message they received, and they all had excited smiles on their faces.

The classroom, located on the top floor of the Secret Research Building, was large enough to accommodate one-twentieth of the students of the Eastern Academy. In the memories of Ziyang and Keller, before today, this large classroom with a capacity of 400 people would only reach the level of nearly full capacity when the principal Hermiin Zheng occasionally gave lectures. But this time, the two of them had just walked through the back door when they saw a large black head.

Not only were the 400 quota full, but many students and faculty members were standing or squatting against the wall, listening attentively.

Keller stood up, cautiously crouched down beside the instructors, and began to pay attention to the speech of the ordinary-looking, ordinary-looking, unremarkable man on the podium.

Those few instructors glanced at them, and quickly recognized these two peerless masters of the Eastern Courtyard. And the already pale face actually became even more ugly: "You guys...... You're here for this class too?"

Ziyang glanced at them and didn't answer. However, Keller smiled kindly: "The master who can defeat He Hu, of course, depends on it." ”

Several instructors looked at each other for a long time, sighed softly, and walked out of the classroom with a dejected look on their faces.

A low conversation came into the ears of Keller and Ziyang—

"Stupid, what a stupid fool I just insulted him like that! Oh my god...... What if he gets revenge?"

"I was really killed by you! What did you say about urine, sanitary napkins, I can't mix it up in the East Courtyard now! Resign!"

"Resign and resign, grandma! Isn't it okay to be unlucky! Bump into such a hard iron plate!"

......

＊＊＊＊＊＊

"And on the basis of this spiral operation of internal breath, how to achieve the external meridians is the key to the whole fingering!"

As he said this, Lin Shu, who was standing on the podium, involuntarily paused and raised his eyes to look at the faces of the audience in the entire classroom.

Everyone looked up at them with a look of concentration on their faces. And this feeling made Lin Shu's heart feel extremely satisfied.

- It turns out that being a teacher is such a fun job!

Although he received some vicious doubts at first, when he used the "Black Flame Finger" created by Gu Hongming, the "Huainan Fighting God" Gu Hongming's original "Black Flame Finger", the members of the Eastern Courtyard who still stayed on the concept of "secret techniques" were quickly convinced.

In their eyes, this strange black finger with a glow seemed to open a door. Beyond the gate, the broader and more splendid world of martial arts fighting was displayed in front of these martial arts cultivators who only knew how to diligently exercise their cosmic power!

It turned out that with only a small change in internal breath, an ordinary martial cultivator with twenty-three level cosmic power could break through the defense of a level thirty master!

So Lin Shu's every explanation of the change of internal breath was regarded by them as a golden rule, and every sentence became a fairy language.

Countless unheard-of principles, dozens of meridians that Alpha Nebula Technology could not detect, and tens of millions of combinations of internal breath flows, like gorgeous paintings, unfolded in front of the students of the highest academic institutions on the eighth-level civilization planet of Honghu.

Some of these theories are from the experience of thousands of years of inheritance of martial artists on Earth, and more are the principles of martial arts cultivation that are restricted by the Cosmic Alliance and cannot be taught to the eighth-level civilization planets - of course, Lin Shu is very clever to control the principle level below the tenth-level civilization.

The martial arts principle of the tenth-level civilization can make the ninth-level civilization stars around the Asuka Galaxy feel tempted and come to snatch it. But for the Cosmic Alliance, it won't cause much attention - after all, this kind of leakage of martial arts technology always happens several times every few decades.

Therefore, when the six or seven hundred students and teachers under the podium all stared at Lin Shu with wide eyes and admiration, the latter felt a little pleasure in his heart, in addition to being surprised, he also had a little pleasure of succeeding in his prank. The double-edged sword is given, and what happens next is up to you......

In this afternoon, Lin Shubian started from the mechanism of internal breath operation, and until the principle of "Black Flame Finger" and the flexible use of various situations were all taught, a full four hours had passed. The students and teachers who were crowded in the large classroom all felt a little unsatisfied, and asked Lin Shu to talk more.

By now, even a fool can see that this teacher, called Lin Shu, has learned so much that he can make them look up to the mountains.

With his easy-to-use and natural way of teaching, his knowledge of all aspects, and the wishful thinking he showed when he taught a few martial cultivators above level forty, it was absolutely impossible for him to only refer to this kind of "secret technique"!

"So...... Let's find a few classmates and come to the scene to practice. Lin Shu didn't want to teach anything more, so he smiled and proposed.

That sounds like a good idea! The students' eyes lit up, and they began to show some eager expressions.

"Raise your hand if you want to come up and practice!" As soon as these words came out, the classroom was like an explosion, and countless arms scrambled to stretch out.

Even He Hu in the front row, and He Minzheng who was sitting at the window, surrounded by a much taller room than the rest of the classroom, were among them.

Lin Shu naturally prioritized the two of them, and then ...... In accordance with the principle of fairness, a student was randomly ordered to come up from the end.

Amid the noisy whispers in the room, at the back of the large classroom, a guy in battle armor quickly stood up.

Coincidentally, Lin Shu pointed so casually, and he actually happened to point to the number one master of the Military Science and Technology Academy of the Eastern Front today, Keller.

So in the eyes of everyone, this martial arts cultivator teacher from Sirius became more and more unfathomable.

When the three of them arrived at the large podium, Keller and He Hu first saluted He Minzheng, and then the two looked at each other without flinching, and a nervous aura began to spread between them—Keller's inferior armor even emitted a faint glow.

Lin Shu stepped forward quietly, separating the tense atmosphere between the two. And the aura emitted by those two masters, when it came into contact with him less than half a meter around his body, it was naturally dissipated by the divine power invisibly.

If it is just a comparison of momentum, the divine power can even resist the coercion of a cosmic power master above level seventy-five...... At this moment, dealing with the "momentum" of such two small characters, Lin Shu naturally felt nothing like an ant scratching.

He Minzheng and He Hu knew Lin Shu's strength, and they were not surprised to see this scene, but Keller's face was ...... But he suddenly became excited.

"Well, there are four of us now, so let's split into two teams to practice. Lin Shu smiled and raised his hand, and the black inner breath light danced on his fingertips: "Although the Black Flame Finger refers to the power secret technique, according to the principle I just said, the shape it manifests is by no means just an ordinary ray-" As he spoke, the black light on his fingertips suddenly swelled up, and under Lin Shu's delicate control, it turned into a black skull shape: "So this drill is not only about attack power and speed, but also about the ability to control internal breath! Who will be in a group with me?"

When He Minzheng and He Hu both opened their mouths, Keller had already taken the lead and shouted: "Teacher Lin, I'm in a group with you!"

Lin Shu looked at He Minzheng's beautiful face regretfully, sighed and said, "Okay, then Principal He will be in a group with He Hu first." Please judge which of them has a deeper understanding of the Black Flame Finger and a more thorough grasp of it. ”

There was a burst of laughter from under the classroom, apparently thinking that there would be no other second possibility in this competition except for Principal He's victory.

Lin Shu patted Keller's shoulder and pulled him aside: "Let them compare." Uh, why are you running around in armor?"

Keller glanced at him with some surprise, and frowned: "Naturally, it is to exercise the body's ability to withstand the battle armor, and the stronger the endurance, the more advantageous it will be in high-intensity battles." Aren't you a teacher who teaches martial arts, how come you don't even know such a simple theory?"

Lin Shu heard a chill when he heard this, and quickly dived into the depths of his consciousness to ask Bupa for advice: "Is he right?"

"Bullshit! It's still theoretical!" Bupa scolded directly: "These human beings from the eighth-level civilization planet are all like stupid people, and any messy cultivation methods will come out! Wear battle armor all day long to exercise endurance? Isn't he afraid that his meridians will shrink?!"

Lin Shu already understood the truth after a little thought-when he was in Tahe Academy, there was also this young man with a very low talent, but an extremely determined mind. After countless failures in cultivating a set of ordinary light body exercises, he didn't know where he heard an ancient method, tying four alloy blocks weighing thirty kilograms to his ankles and wrists, and persistently wearing them all day long.

As a result, a year later, not only did there be no improvement in his body technique, but the muscles of his limbs and the meridians were instead made by alloy blocks like a thousand-year-old tree bark, and he lost any mechanism of movement - even the most advanced skin grafting technology could not restore his normal mobility.