"That's right," Ye Lan nodded, "Although it must be based on theoretical learning at the beginning, appropriate practical courses are also necessary. As we all know, the vast majority of Longinus's weapon parts and even entire pieces are manufactured through 3D printing technology; A small number of demanding electronic and precision components are manufactured by industrial nanorobots. ”

Speaking of this, Ye Lan smiled slightly: "For a freshman in the engineering department like me, the practical content is naturally the operation and modeling of 3D printers, and dangerous goods like nanorobots are naturally impossible for us to easily touch." ”

"Speaking of which, thanks to Longinus's black technology materials science and precision technology, 3D printing, a manufacturing method with its own defects, can be put into mass production here and penetrate into some civilian fields. It's like when you buy a few guns in your room, they should be the product of 3D printing. However, you've also checked, it's no different from what you build by traditional methods, right? Ye Lan tilted her head and said with a smile.

Ye Yuxuan thought about it for a while, and it was true. At least his HK416 can't see any flaws in the workmanship, and even the curved surface that 3D printing should be a weak point has been processed to a fairly high "resolution" level, at least it feels very smooth to the touch, without the roughness it should have. In terms of material, it is a more traditional titanium alloy raw material, and it is obvious that the strength of the final product is enough to meet the standard, which should also be related to the unique craftsmanship of the city of Longinus.

Ye Lan put a piece of sushi into his mouth, chewing it slowly, his movements were elegant but not losing speed: "Therefore, theoretically, I only need to study for a while, and I can make a finished product by myself." There is no assembly, no supply chain, just a 3D printer and a little raw materials, plus a data model. ”

"So, I sometimes think, if it could be like that, it would be great. I can't go with you to the battlefield of the future, but I can customize a set of equipment for you that can help you save the day when you encounter danger, and this should be the best that my sister can do for you. ”

Listening to the sudden motherly elder sister say such a heartfelt word, Ye Zi's heart rose with a burst of warmth. He picked up a new piece of sushi, leaned back in his chair, raised his head, and looked at the blue sky among the green treetops, enjoying the comfort of the heart-to-heart connection between the siblings......

The breeze blew through the ends of Ye Yuxuan and Ye Lan's hair, and Sister Ye Lan packed up the lunch box after eating and put it in the backpack she carried with her for next use. Ye Zi put his hands behind his head, feeling the short leisure time of noon.

It didn't take long for Ye Lan on the side to take the lead in breaking the subtle silence: "I can't imagine that not long ago, I who was still taking care of housework and you, who were decadent and waiting for the start of school during the holidays, actually completed a morning of high-intensity training in the academy at this time, resting at noon, while thinking about the plans for the afternoon and beyond, and it looked like this, as if I had been living like this for a long time." When you think about it, it really feels unreal. Ye Lan smiled in confusion and said this.

Ye Yuxuan thought for a while: "Indeed, I really didn't expect us to adapt so quickly, should it be said that this is also due to the result of transformation?" ”

"It doesn't matter who you give the credit, it's good to be able to adapt." Ye Lan nodded, "By the way, have you thought about it?" Get out of here and continue to live a peaceful life? ”

Facing Sister Ye Lan's abrupt question, Ye Yuxuan was stunned for a moment, and replied with a wry smile: "As the saying goes, it's easy to get on a thief ship and get off a thief ship, even if you want to, this kind of organization can't get out of it if you want to." ”

"What if you could? Given another chance to choose, would you do it? ”

Ye Zi looked at her sister's eyes and could understand the worry and concern. However, there are some things that are not so easy to let go: "That would mean losing the transformation, the possibility of immortality and the knowledge you have now, and you have to erase all memories from then to the present." Forget all about it and never touch it again. However, I do want to know more about the secrets of this world. ”

Ye Yuxuan paused, and then said: "Even if you don't talk about those so-called fair and honest reasons such as maintaining balance and solving wizard problems. It's purely for my own selfish interests, and I have no intention of giving up. Su Mu is also here, and I don't plan to retreat easily. ”

Hearing this, Ye Lan didn't say anything more, since he had already made up his mind, he should respect the decision he made. After all, isn't that why you came here?

At this point, the two siblings didn't say much, and felt the coolness of the breeze under the shade of the trees at noon......

Ten minutes later, Ye Yuxuan was walking on the neat school road of the college, and Ye Lan had already left not long ago and began to prepare for the practical course. Ye Yuxuan also left the bench. With little rest time left, he had to start preparing for the afternoon training program right away.

But what to prepare, he didn't know anything in his heart. The information said that as long as you rush to the skills and ability proficiency area before one o'clock in the afternoon, you can report and participate in training, but it does not say what to train...... What should I prepare?

So he decided to ask Su Mu, and after the connection was connected, Su Mu's voice came from the channel: "Hey? Snoring~ What's the matter? Purr~"

Ye Yuxuan ignored the sound in the background that sounded like eating noodles or drinking soup, and asked, "It's nothing, I just want to ask what to prepare for the afternoon training?" ”

"Oh, afternoon. Hiccup~" Su Mu paused, "Just bring a few guns you bought in your dormitory, Hiccup~ These are the main things for the afternoon training...... Hiccup~"

Ye Yuxuan finally couldn't help it: "I said, aren't you neural network communication?" Why are there background sounds and hiccups? ”

"Oh, I accidentally turned on the outside sound source mode."

Ye Yuxuan: "......"

Ye Yuxuan silently hung up the communication, this unreliable guy's so-called appointment with a friend to eat lunch together is actually to eat noodles! So what's wrong with that?

In fact, he just thought too much, Su Mu was just sucking bubble noodles in the dormitory with his roommates, and only prepared four bowls to satisfy the appetite of the reformer...... It doesn't seem to be very convenient......

So, Ye Yuxuan immediately rushed back to the dormitory, took a few academy-produced firearms in the "temporary arsenal", and began to rush to the skills and abilities proficiency area. When he arrived, there were only five minutes left before one o'clock in the afternoon, and it seemed that Sister Ye Lan's decision was indeed a wise move.

And the school that requires students to carry guns in class, Ye Zi is also the first time to see it......

And what appeared before his eyes at this moment was another magnificent complex of buildings.