After traveling through time, I, as a mechanical genius, am dedicated to improving myself.

Chi Xilu was waiting at Capital Airport.

Send three people to the Public Security University.

Thank Zeng Li before getting off the car.

"Thank you, good friend."

"No need to thank me. I'm not avenging you. My friendship with Lao Chi is even better than yours."

"Let him take good care of himself."

"Don't collapse."

Chi Xilu shook his head helplessly: "Don't worry, I will keep an eye on him. Starting tomorrow, I will come to class when I am free. I will not call the roll again if there is a small difference. I am panicking."

Zeng Li has read Chi Xilu's information.

"I think it would be more appropriate for you to focus on further studies in psychology."

"You can't transition from military service to government, so profiling isn't going to be very helpful. But you can always use psychology. The more high-ranking someone is, the calmer they are and the less likely they are to show their emotions, the more useful psychology is. A single word or gesture from the other person can help you understand them in the shortest possible time."

"Micro-expressions are difficult to fake. They are subconscious reactions of the brain, and people often don't have time to control them before they unconsciously make these movements."

"For example, right now, you're very interested because your pupils are dilated, your blinking rate is increased, and your head is tilted slightly. These are all signs that you're interested."

"Think about it carefully. Goodbye, my good friend."

Chi Xilu's car stayed in front of the gate of the Public Security University for a long time before leaving.

Zeng Li packed her things and looked at the case files sent from various places.

The center forward helped with the organization. Sometimes when Zeng Li was in a good mood, she would teach him something, but Jiang Kai was really not cut out for it.

I no longer feel sleepy when I see the center forward in the case file.

"Boss, where can I learn that micro-expression you mentioned?"

"Are you excited?"

The center forward urged: "You can also teach a little about this in class. It can be useful when interrogating prisoners."

"It can be used when recording a confession."

"It can also be used when dealing with suspects."

Zeng Li was generous: "Then add it. I'll teach you a little bit. How much you can learn is up to you."

The center forward happily made a pose to show off his muscles.

"As for it?"

"The leaders are full of knowledge, but they don't understand our hardships."

"But you don't need to understand. I'm going up to find you. Please don't come down to the mortal world."

First day of class.

Because this group of students returned to school, Zeng Li and others were also in school, and some leaders also came back to be on duty, the cafeteria opened as usual.

This time, all the students were attending the class internally, and they all knew Zeng Li.

Cheng Yunqing was originally greeting Zeng Li happily, but then he saw Zeng Li's epaulettes... golden branches and leaves, golden star emblems?

Rub your eyes.

By the time I realized what was happening, Zeng Li had already left.

"Xi Luli, did you see that?"

Xi Shuli had his back to Zeng Li and didn't see it.

"What are you looking at? Hurry up and eat and go to class."

"Major General."

"The teacher's shoulder badges are those of a major general!!!"

Xi Luli waved his hand in front of Cheng Yunqing: "Are you still asleep?"

"The teacher is a lieutenant colonel."

Cheng Yunqing stopped eating and went to check.

Zeng Li arrived at the basketball court and found eight tables placed in the front. It looked like Zeng Li was being assessed and the judges were sitting in the front.

"High center, what's going on?"

"School leaders, come and learn from you too. The cases you solved in your last class were all correct. They've admired you for a long time. Before, they studied secretly behind the surveillance cameras, but now they can study openly. After all, you're a general now, so there's no shame in learning from you."

"You didn't learn it before because you were embarrassed?"

When Cheng Yunqing rushed in, he checked the shoulder badges again and said, "Fuck, he really is a general."

Zeng Li raised her hand, but before she could do anything, Cheng Yunqing slapped himself in the face.

"It was a slip of the tongue, sir. I was just too excited."

"This is my first time meeting the General."

Zeng Li dismissed him: "Go sit down, it's not fair to make such a fuss."

I still remember clearly how you held my arms and legs and kept clinging to me when I left last time.