The magical artifact designed by Ye Xingli was named the Hundun Shirang Yi.

After extensive surveys of *dazhuan* students, Ye Xingli profoundly realized one thing: *dazhuan* students were popularizing eating dirt and rocks.

Just as many *Wanfa Daxue* students take medicine to meet their basic physical needs while also consuming concrete blocks to suppress their digestive power, preventing an overly strong digestive system from harming their bodies, or due to a weakened digestive system from prolonged food scarcity.

*Dazhuan* students in various regions achieve this by swallowing rocks and dirt.

Unlike the *Wanfa Daxue* university town, in numerous *dazhuan* colleges, due to environmental factors and a lack of technology and funds, dirt and rocks are much easier to acquire than concrete and edible concrete.

Compared to the more scientific and healthy edible concrete, eating dirt and rocks clearly has many side effects. For instance, the burden on the gastrointestinal tract requires *dazhuan* students in the *Lianqi* realm to expend considerable energy on intestinal peristalsis, increasing their physical burden and sometimes reducing work efficiency.

Therefore, Ye Xingli designed a magical artifact for eating dirt. By processing dirt and rocks within it before consumption, it could effectively reduce the burden on the gastrointestinal tract and also add different flavors.

At this moment, as Zhang Yu activated *Tiangong Zaowu*, a vast amount of knowledge and technology surged in his mind. With bursts of inspiration, a new blueprint gradually formed in his mind, tailored to his request for cost reduction.

However, Zhang Yu naturally did not directly draw the design for Ye Xingli. Instead, he replied: “Senior Sister, I have an idea.”

Zhang Yu: “What do you think of this modification? Can it reduce costs a bit?”

Although Zhang Yu only gave a rough direction and did not disclose specific details, Ye Xingli was greatly inspired after reading it.

Especially since Zhang Yu’s optimization direction was to reduce costs, it did not significantly alter Ye Xingli’s design concept. Furthermore, Ye Xingli knew the importance of cost in the *dazhuan* student market.

Ye Xingli: “Junior Brother, your suggestion is very useful [bows][1 *Lingbi*]”

Over the next few days, Ye Xingli and Zhang Yu frequently discussed and jointly refined the design of the Hundun Shirang Yi.

Finally, with the finalization of the design blueprint, Zhang Yu and Ye Xingli completed the design of the Hundun Shirang Yi together. He then saw the *Daozhong* named *Lingyun Qixin* appear on the *Yushu*.

Looking at this newly copied *Daozhong*, Zhang Yu was delighted and immediately quietly sensed the abilities it contained.

“Hmm? So Senior Sister is a master of patchwork? No wonder I found some familiar parts in the design blueprint of the Hundun Shirang Yi.”

In Zhang Yu’s view, the so-called *Lingyun Qixin* was a blueprint fusion ability. It could fuse any two artifact-refining blueprints to create a new one.

However, the fusion result was not necessarily good. It might extract the essence or the dross, so choosing which blueprints to fuse was crucial.

For example, fusing *Feijian* blueprints with other *Feijian* blueprints was more likely to yield good results.

But fusing a *Feijian* blueprint with the Hundun Shirang Yi would easily create a useless blueprint that failed at both.

At the same time, this fusion clearly had its limits. It wasn’t that by fusing all the magical artifact blueprints on the market, one could possess the functions of all artifacts.

If new blueprints were continuously fused, the previously integrated elements would gradually be lost.

It was like a hard drive; it could only hold so much. Once capacity was reached, adding new items required deleting old ones.

For instance, after fusing two speed-type *Feijian*, a new *Feijian* was designed that combined the advantages of both, becoming even faster.

However, if an offensive-type *Feijian* blueprint was then integrated, the newly fused blueprint might have enhanced offensive capabilities but reduced speed.

In short, the fusion of *Lingyun Qixin* was not a panacea. It depended on the specific blueprint choices and the immortal and physical limits of the artifact itself.

This fusion process required consuming one’s *linggan*.

Once *linggan* was consumed multiple times, not only would further fusion be impossible for a period, but the brain would also become devoid of any innovative thinking, completely rigid.

Zhang Yu thought to himself: “A few fusions per month are fine.”

Zhang Yu then sensed the *Lingyun Qixin*’s advancement requirements, thinking: “Does a Level 2 *Lingyun Qixin* require designing 10 *Zhuji*-level artifact-refining products together?”

“I don’t have time for that now. I’ll worry about it later.”

With the *Lingyun Qixin*, Zhang Yu felt even more confident about the upcoming design competition and immediately began a new round of design work.

A flash of light appeared in his eye sockets, revealing various design blueprints.

Among them, in addition to Ye Xingli’s Hundun Shirang Yi, there were also designs such as an external digestive system, wear-resistant power boots, and disposable artificial skin.

These designs were all created by Zhang Yu over the past month, gradually modified using *Tiangong Kaiwu* while researching *dazhuan* students.

After all, each activation of *Tiangong Kaiwu* required burning *daoxin*, making it unsuitable for a large number of operations at once. So, Zhang Yu spread it out over the past month.

Because the time was spread over a month, although there was consumption each time, Zhang Yu’s *daoxin* gradually recovered after a few days of *xinfa* operation, keeping his *daoxin* at Level 19 (83) at this moment.

The basis of the blueprints came from the great library of *Wanfa Daxue Cheng*. While researching *dazhuan* students, Zhang Yu optimized the blueprints through *Tiangong Kaiwu*.

In his opinion, the artifact products in these blueprints were relatively suitable for *dazhuan* students, but they were not enough to secure a high rank in the design competition.

“Only the top 10 schools in the design competition will be awarded military certificates. If I miss this year, I’ll have to wait until next year. It has to be better.”

“Now that I have the *Lingyun Qixin*, I can try a few fusions to see if I can get a more creative and commercially valuable blueprint.”

“If possible, then I’ll optimize it through *Tiangong Kaiwu*…”

As Zhang Yu activated the ability of *Lingyun Qixin*, he felt the design blueprints of the Hundun Shirang Yi and the external digestive system rush into his mind like two torrents, forming spirals that violently converged.

Various magical artifact designs combined, eventually forming a brand-new blueprint that shimmered golden in Zhang Yu’s mind.

“This is…”

Sensing the shining new blueprint in his mind, Zhang Yu slowly read its name: “Artificial Excrement Machine… eat dirt, poop out shit, *dazhuan* students’ best life partner…”

“Damn it!” Zhang Yu cursed under his breath. “How can I submit this for an award? It’s too *dazhuan*-flavored; the judges will never approve it.”

Zhang Yu shook his head and again selected blueprints for fusion. A moment later, another shining blueprint appeared before him.

“University student skin? Too specialized.”

Zhang Yu continued fusing, and more blueprints appeared.

“Automatic ad viewer? No technical content.”

“Hemorrhoid breeding device… what a piece of junk.”

“University student simulator, lacks novelty.”

With each activation of *Lingyun Qixin*, just before Zhang Yu’s *linggan* ran out, a satisfactory blueprint finally appeared before him.

“Fengshen Banfagai Xing Gongzuo Dongli Xue” (Wind God Half-Magical Skeleton Type Work Power Boots).

Although the blueprint described it as a half-magical skeleton type, it actually only borrowed from the design of top-tier foot magical skeletons in terms of appearance, such as streamlined shapes, dynamic flowing light, and flashes disguised as projections from the *Lingjie*.

After the boots encased the entire foot and lower leg, their appearance made them look more like a foot magical skeleton, exuding a touch of light luxury unique to university students.

“The name has ‘magical skeleton,’ the appearance is like a ‘magical skeleton,’ and wearing it feels even more like a ‘magical skeleton,’ but it’s not a magical skeleton at all, but a pair of boot-shaped magical artifacts.”

Zhang Yu nodded slightly. He knew that *dazhuan* students were all in the *Lianqi* realm, with a maximum *fali* limit of 100 points. If they installed other magical skeletons in daily life after installing eye magical skeletons, the burden would be too great for them.

Therefore, this design, which had the appearance of a magical skeleton but was not one at all, would clearly be popular among *dazhuan* students in a world where magical skeletons were more respected than human bodies.

Beyond its appearance, its functional design also met the requirements of *dazhuan* students.

Through this period of research, Zhang Yu understood very well that *dazhuan* students, as a large marginalized group in the second layer with little voice in the *Lingjie*, had long had their needs ignored by many large companies.

For example, *dazhuan* students had always relied on physical movement. They had to practice martial arts, run errands, and work everywhere. *Dazhuan* colleges also lacked convenient facilities like *Yuanzi Tongdao* or anti-gravity channels, so their legs suffered severe wear and tear, and their shoes were easily damaged.

A durable, cost-effective pair of shoes suitable for complex road conditions was something *dazhuan* students desperately needed.

And if these shoes could reduce their leg wear, that would be even better.

The work power boots designed by Zhang Yu not only met these requirements but also incorporated the principles of *Jiuxiao Yunkong Jin*, which could better transmit power, enhance cushioning, increase leg explosiveness, and reduce wear and tear.

In addition, they had a jet acceleration function and an overload mode that released lightning *fali*.

They also featured a solar *fali* charging mode, allowing *fali* to be replenished through sunlight. Although the replenishment efficiency was extremely low, it was very useful for *dazhuan* students.

Under these circumstances, as Zhang Yu again activated *Tiangong Kaiwu* to optimize costs, the cost of these work power boots was further reduced.

“While maintaining the ultimate performance of the *Lianqi* realm, the cost has also been reduced to the lowest.”

“Hmm… the only side effect is that prolonged use may cause overheating and electric leakage.”

Zhang Yu also wanted to try to optimize this side effect, but *Tiangong Kaiwu* also had to obey the limits of immortal and physical principles.

Even if he could optimize this side effect, it would result in cosmetic degradation or a reduction in performance.

Zhang Yu simply gave up on optimizing the side effect and directly sent the design blueprint to Ciji Zhenjun to see if she had any solutions.

Seeing the blueprint sent by Zhang Yu, Ciji Zhenjun replied: “What else is there to optimize?”

Ciji Zhenjun: “Afraid of heat and electricity? Just let *dazhuan* students take some painkillers.”

After replying to Zhang Yu, Ciji Zhenjun continued looking at the design blueprint, a complex expression on her face.