"It seems like the lecture is over. ”

Chen Feiyang tightened a screw and raised his head.

Through the narrow windows of the old warehouse, students could be seen coming out of the auditorium in twos and threes, most of them silent, seemingly unmotivated. Anyone whose IQ is crushed by a complex equation and unintelligible terminology for two hours will probably have such an expression.

The only effect of Professor Yang's lecture was to make these guys understand that they really don't have the talent to be Warframe designers.

"Nothing, right?"

Shen Zheng walked up to the podium and spoke in a deep voice to Professor Yang, who was sorting out the lecture documents.

Professor Yang was silent for a long time.

Finally shook his head.

He squinted at the dense symbols and formulas on the blackboard, and sighed softly, "Just me, you may still blame me for leaving Master and Flying Star City, but you should also understand that the Primordial Martial Arts can indeed no longer be a weapon to save humanity from peril, what we have to do is to improve the battle armor......"

"Professor Yang, you are worried about the country and the people, of course the choice is right. ”

Shen Zheng's tone was a little harsh.

He walked up to Professor Yang and stood side by side with him, looking at the contents of the blackboard together.

"Leaving so many hidden questions and not giving answers, do you want some of those students to subconsciously give answers, so that you can discover his genius?"

"The Black Dragon Warframe's method of lowering the energy threshold may bring about a third revolution in the Warframe, which is very important to us. Professor Yang rubbed his temples.

"Even if there are so many elites in the Advanced Warframe Academy, can't they deduce this method on their own, do you have to come to our small place to find it? You finally found that those theories you have always believed in can't save us?"

"Just me!"

Professor Yang's emotions were slightly agitated, and he raised his voice, "Yes, I was wrong. The cooperation between the primordial martial arts and the battle armor should not be separated, I blindly looked for a scientific solution, but in the end I fell into a mystery, do you know how I felt when I saw the black dragon battle armor cast the ancient sword nineteen forms?"

"Regret, pain?" Shen Zheng's face was expressionless, his lips moved, and he squeezed out the vicious words from between his teeth.

"Nope. ”

Professor Yang shook his head, "It's shock. ”

"The Nineteen Ancient Sword Styles formed a perfect match with the energy input and output of the Black Dragon Battle Armor, forming a harmonious ring that I had never thought of before. ”

"It's like going back to the original Warframe concept, but it's a step further. ”

"Just me, the moment when the primordial martial arts that Master has been wanting to shine again is coming!"

"I ...... Be sure to find the Black Dragon!"

His tone grew more and more excited, and his fists clenched, as if he had returned to his youth.

Shen Zheng and I were silent.

"It's late, it's almost time for us to go back. ”

The final assembly of the black dragon armor was very time-consuming, and before I knew it, a dusk had passed, there was no sunlight outside the window, and the dim gray and blue sky shrouded the entire campus.

"Hmm. ”

Sang Yu'er quietly typed in the last data and turned off the power.

"Let's go. ”

The two of them struggled to open the door of the old warehouse, and a cold wind blew, Chen Feiyang sneezed, and turned back to help Sang Yu'er tighten his scarf.

"It's quite cold outside. ”

Just in February, according to the weather settings of Flying Star City, at least most of the city is still winter, although there are few snowy days, at least take a breath, you can see the white mist.

The campus was quiet, and there was no one left.

Chen Feiyang looked up, the auditorium opposite was dark, and Professor Yang should have left a long time ago.

"We ...... Shall we check it out?"

He turned back to Sang Yu'er and asked, although there was no reason, but he always felt a little obsessed.

"Good. ”

Sang Yu'er didn't ask him what the reason was, and agreed obediently.

Passing through a corridor to the entrance of the auditorium, Chen Feiyang gently pushed, and in a squeak, the decayed wooden door opened.

"Without a lock, I know. ”

The auditorium is not usually used much, there is nothing valuable in it, and the teachers on duty usually do not lock the door.

Click!

Sang Yu'er turned on the power to open the hall, and the chandeliers overhead and on all sides lit up, illuminating the entire hall.

"Hmm-"

Chen Feiyang saw the dense handwriting on the blackboard at first glance.

"So much written!"

He excitedly took three steps and two steps, jumped onto the podium, and looked greedily at the equations on the blackboard, eager to eat them all.

"Nurener Transformation, Zhang's Theorem, Bilunar Variation Theory!God, Professor Yang talks so deeply," Chen Feiyang laughed at Sang Yu'er, "You still said that he doesn't talk so much to those idiots, and now it seems that the professor really has no reservations at all, and I don't know if Xie Lang can understand them!"

He was so excited that he picked up a piece of chalk and calculated it in the blank space on the blackboard.

"It's a little wrong. ”

After only calculating two steps, Chen Feiyang found the problem, he frowned, checked it, added a few auxiliary items, and then came up with the correct answer.

"Probably Professor Yang is trying to simplify the calculation. ”

He clapped his hands contentedly, looked down, and was soon attracted by the idea of another whimsy, grabbed the chalk and began to count again.

Sang Yu'er sighed, found a chair in the front row and sat down, quietly looking at his back.

- Although his face was expressionless, there was a faint pride and tenderness in his eyes.

"Found it!"

Early the next morning, Professor Yang broke into Shen Zheng's office like a young man.

Shen Zheng and I were drinking tea, he stared at the tea cup meticulously, observed the droplets, and knew that it was level with the rim of the cup, so he stopped pouring water, picked up the teacup, and gently sniffed the fragrance of tea.

"Really, which stupid student in our academy?" he raised an eyebrow and looked at Professor Yang lightly.

"I don't know yet," Professor Yang threw his phone in front of Shen Zheng and me, swiped his fingers, and showed him a few photos, "The questions I left on the blackboard were solved by someone at night, and he also noticed the traps and flaws I deliberately left." ”

"Such a person is rare even in the Advanced Warframe Academy. ”

He paused, his eyes lit up, "Since this person is in the Divine Machine Academy, then he must be the designer of the black dragon!"

"Just me, you must help me find him!"

Professor Yang was excited, slamming the table, overjoyed, coming to the Divine Machine Academy for so long, he finally caught the tail of the "God Professor"!

Shen Zheng lowered my head to drink tea, and my eyebrows were slightly raised.