Dadong pulled Zhang Kai aside, and the two of them looked at the blueprints in the Hex's Evolution Core together.

The core of Hex's evolution is a repository of blueprints for engineering items, from the most basic mechanical parts to the devastating cannons.

However, the current evolution core level is still low, and only the database of engineering items below the advanced level has been opened, which can be exchanged for magic energy crystals.

Like the magic repeater that Daito said, it is a relatively complex high-level engineering item, and it is a very powerful weapon!

Magic Repeater Blueprint: Advanced Engineering Item Blueprint, Exchange Price: 1000 Magic Energy Crystals.

The current market price of the magic energy crystal is 25 silver coins each, which means that the price of this design drawing is about 25 gold coins, which is already very exaggerated.

However, according to Daito, the magic repeater is very powerful, and it can shoot 5 magic arrows in an instant, and the power of each arrow is equivalent to that of a first-order monomer forbidden art!

In the first-order forbidden arts, the forbidden technique of area destruction is enough to destroy a large area of living beings, and the power of the single object forbidden technique is even more powerful than the forbidden technique of area destruction.

For example, the Flame Storm in the first-order forbidden art, although it can kill a large number of enemies within the forbidden range, when it can be used to deal with the boss, it will also deal fifty or sixty thousand single damage.

However, if the damage of the single forbidden technique is played, I am afraid it can reach more than 100,000!

Even the big boss is a little overwhelmed when facing the monomer forbidden technique.

The magic repeater can blast out five magic arrows in an instant, and the lethality of a single body is really terrifying, if there were a large number of magic repeaters before, I am afraid that the abyss shadow demon would not be able to break in so arrogantly.

A high-level engineer can make a magic repeater, and the production line in the steel fortress can replace the engineer as long as it is programmed.

The War Cube is bound to Dadong, as long as Dadong can make engineering items, the War Cube can control the production line for mass production, but the efficiency cannot be compared with that of a real senior engineer.

After listening to Dadong's introduction, Zhang Kai was a little impatient, he asked Fanhualuo to bring two thousand magic energy crystals, and exchanged the design drawings of the magic repeater.

Dadong learned the blueprints of the magic repeater with a snap, and he began to try to make this engineering weapon.

The various materials needed for the magic repeater are still relatively precious, and it is necessary to process the relatively high-quality black iron into various parts first, and then assemble them, and also need to depict the magic array on it.

And the most important material for the magic repeater is the bowstring, which requires high-level beast tendons to make, and at least it can be dropped by killing a second-order boss.

In the auction house of Qingshan City, Prosperous Luo bought two high-grade beast tendons to make materials, and he also began to buy all kinds of high-grade beast tendons in the Tiandao grocery store.

It will take a while for Daito to make a magic repeater, and he will only be able to start processing it with the production line after he is more proficient in making this engineering item, and he still needs to solve the problem of materials.

Now the 10 production lines can't be empty, and Dadong directly let the production line start to produce electromagnetic bombs and other engineering items.

Not only did Dadong exchange the design drawings of the magic repeater, but he also made the design drawings of the magic locomotive, which was another of his goals for mass production!

The materials of the magic locomotive are relatively easy to handle, mainly to make the magic engine, which has relatively high engineering requirements.

At the moment when Dadong was making the magic repeater, Zhang Kai first went back to Qingshan City, and he wanted to preside over the upgrade of the Tiandao grocery store.

During this time, the players of the Musou Guild bought a large number of electromagnetic bombs, and made a lot of money by recycling magic energy crystals.

The Peerless Guild's funds have also skyrocketed, and there are already enough coins to upgrade the Heavenly Dao Grocery Store.

After Zhang Kai used the grocery store upgrade blueprints, he paid for a senior architect, and a large group of NPCs began to build the Tiandao grocery store.

The low-level grocery store will be upgraded to the mid-level grocery store, and the Tiandao grocery store will be upgraded to seven floors, and the area of each floor will also be expanded, which is a good reserved place.

When I first bought this storefront, I preset a lot of spare space, which is enough to upgrade to a high-end grocery store.

After the upgrade, the upper four floors of the Tiandao Grocery Store will be used as intermediate workshops, and the top floor will have half of the advanced workshops.

The advanced workshop can meet the needs of the senior life occupation and can greatly improve the production success rate of the life occupation.

Originally, there were a lot of life occupations in the Tiandao grocery store, and it was already a little squeezed, but when the Tiandao grocery store was upgraded, there were a large number of workshops, and the life occupations could be settled in.

At the same time, Zhang Kai is also building blacksmith shops, pharmacies and other stores in the steel fortress, preparing to let some life occupations also settle in the steel fortress, and take the business circle of the steel fortress first.

After Dadong obtained the inheritance of mechanical pioneers, Zhang Kai made the prosperity rely on this large number of recruited engineers, with a large number of engineering drawings in Dadong's hands, countless engineers have come to vote.

Even Professor Wang has been invited to the Iron Fortress to help Dadong study the magic repeater.

"Danguan, the first fruits of the gold and silver fruit tree are completely ripe, we can go and pick them!"

Xia Zining suddenly reminded Zhang Kai that she could run around with the Baicao Garden, so she knew the situation in the Baicao Garden.

Under her careful care, the herbs in the Baicao Garden are all thriving, and Zhang Kai has already gone in to pick several waves.

However, it took a full ten days for the fruit of the gold and silver fruit tree to grow to full maturity, and this was the first time he had gone in to collect it.

Looking at the heavy gold and silver fruits on the branches of the gold and silver fruit tree, Zhang Kai was also slightly surprised.

He found that in order to collect these fully ripe gold and silver fruits, he actually needed advanced collection techniques, which was really a high demand!

Fortunately, Zhang Kai's collection technique triggered the counterattack effect, and it could also be directly collected by skipping the level, and he stretched out his hand to wipe it, and the gold and silver fruit fell into his hands.

Rule Record: The collection technique triggers the counterattack Mandate effect, which can be collected by skipping the level, the collection effect is increased by 100%, and the gold and silver fruits are successfully collected, and the proficiency is 200 proficiency points, and 30,000 experience points are obtained.

Rule Record: Obtain the perfect form of gold and silver fruits, get 12 gold coins, and get 4 rune steel!

Zhang Kai was taken aback, collecting a gold and silver fruit, he could actually obtain so many proficiency and experience points.

Under the bonus of the counterattack Mandate of Heaven, even the gold and silver fruits collected were unusually plump, and more gold coins were obtained than expected.

The 15 gold and silver fruits were collected one by one, and Zhang Kai got 180 gold coins plus 60 rune steel, and his daily income reached 18 gold coins!

It's really a cash cow!

"These rune steels can be given to Dadong in that part, he makes magic repeaters, and you can add some rune steels to improve the attributes of magic repeaters."

Zhang Kai directly sent some rune steel to Dadong, and at the same time, he looked at the batch of medicinal herbs that were ripe in the Hundred Herb Garden, and his heart was about to move.

"It just so happens that the gathering technique is about to be upgraded to an advanced level, so let's rush up the skill level here."