Early in the morning of the next day, the woman sent a maid and brought him the deposit she had expressed.

This is a magic crystal of a third-order spiritual beast with a high degree of purity, and the loss of refining the Kaidarin crystal with the spiritual demon core is the smallest, and the efficiency of running energy is also the best.

Naturally, the price was second to none among the third-order magic crystals.

If you don't count the space pocket that Dong Chan'er's uncle gave him, the value of this magic crystal alone is almost above those materials.

If the two are combined, the materials available to Lin An now are almost enough for Xiao Tanji to upgrade the dragon knight's battle armor.

But he wasn't going to do it right now.

Not to mention that he still needs a period of time to absorb and adapt to the spiritual energy seed in his body, just to say that the specialized sentinel armor may be better than the dragon knight armor in terms of practicality.

After all, this thing can even supply the energy cycle of an immortal battle armor, and the benefits are really much higher than directly upgrading the dragon knight battle armor.

In addition to waiting for the bearded man to heal his injuries in the past few days, he took himself out on a mission.

The rest of the time is spent working in the mechanical research institute, and taking more orders as much as possible when Xiao Tanji optimizes and upgrades the drawings.

The private forge room that was originally left to him now has other owners at the behest of the old man.

He didn't complain, after all, the cost of a private forging room was not low, and he probably hadn't been working there for more than two months.

Considering that he will only spend less and less time here in the future, Lin An, who is still under the old man's command, is still under him.

He didn't take back the key card so that he could continue to use the room without additional rental.

It's already a big benefit, and there's really no right to complain.

Fortunately, the new owner of the room was still just a summoner's apprentice.

Although he was two grades higher than him, this person was still quite far from the realm of most graduates approaching the realm of official summoners.

So I didn't have the slightest idea of complaining about sharing a workspace with him.

At least not verbally.

……

Time passed day by day, and Lin An was almost 24 hours a day in the studio frantically taking orders to save money for materials.

Lin An only felt like a donkey on a grinding plate, not only did he have a dangerous mission from the Field Support Department behind him, but now he also had the threat of a chaotic sea adventure.

Like a steel knife, it was against his back, forcing him to accelerate and run forward.

Regardless of the windfall he made, even if he frantically took orders in the studio and wanted to save enough money for Xiao Tanji to upgrade his armor, it would take a few years to say the least.

For Lin An, who has at most half a year left, his crazy behavior of taking orders in the studio at the moment is just a drop in the bucket.

But only in this way, I don't know how effective the efforts were, can he relieve the anxiety in his heart somewhat, and temporarily forget the great danger he is about to face.

Interests and risks coexist, and rights and crises coexist.

Getting stronger is like driving a car without brakes, slamming on the accelerator and walking on a road that is constantly going down.

Since returning from Mushroom Town, Lin An has honestly stayed in the academy and never gone anywhere.

But whether it was the temptation of the bearded man or the coercion of Dong Chan'er's woman, Lin An began to realize it.

As long as you become stronger and have power, there will be people who will beat your ideas and try to benefit you in various ways.

Weak people will be bullied by others, and if they want to become stronger, they will unconsciously get involved in other people's calculations.

Perhaps the way to break through this endless cycle can only be achieved by standing on the top of the mountains that everyone needs to look up to.

But who can guarantee that a strong person as strong as the Grandmaster realm will not have other problems plaguing him?

Lin An didn't know this, but like Dong Chan'er's woman, he didn't want it to happen again.

Fortunately, during the period of his anxiety, the plan for the specialized sentinel armor optimized by Xiao Tanji has been released.

This somewhat alleviated his complicated mood now.

But just like most unsatisfactory things in the world, while solving Lin An's problem, Xiao Tanji also threw a new problem in front of him.

"The third-order magic crystal is the core of the energy matrix...... Six second-order magic crystals are used as secondary nuclei to assist in absorbing energy...... All the accumulated crystal nuclei are turned into power nodes, enhancing the efficiency of energy absorption and recall......

Hiss......! ”

After looking at the drawings transmitted by Xiao Tanji, this little guy does have a mechanical strength far beyond his own.

Far from being the design blueprints, they weakened the energy reserves of the Sentinel's armor, as he had envisioned.

Instead, it also integrates features such as observer armor and psionic amplifiers, making it a more powerful battlefield support system.

This set of plans can be called flawless, even Lin An didn't expect that Xiao Tanji would complete it so well.

But the only problem is that if this plan is really implemented, the cost of this project will be too high.

This is already enough to build an ordinary machine soul beast after the second-order promotion ceremony, and there are still a lot of surplus material reserves.

Originally, he still wanted to use that third-order magic crystal as the core of the energy matrix to upgrade the dragon knight's battle armor in the future.

But in this case, he didn't know if it was still a cost-effective solution to continue building Sentinel armor at this point in time.

Moreover, the sentinel armor created in this way may also allow him to be directly promoted to the ranks of second-order summoners.

Of course, the rapid improvement of strength is a good thing, but here in Lin An, there are troubles that no one else has.

Although the machine soul can give the host the seed of power to master the power of the elements, compared to other soul beasts, the improvement of the strength of the body is really limited.

The only way to strengthen the body is to temper it through the elements, which is a plan with little effect.

Although other mechanics who need a few years, or even more than ten years to be promoted to the first order, can adapt to this leap in strength, most of them will still sign a soul beast with a biological bloodline as a natal spirit beast to strengthen their bodies.

But when it came to Lin An, especially when his second natal spirit beast, the primordial worm egg had not yet hatched.

Whether it would be dangerous to rashly carry out such a large increase in intensity, he himself did not know.

The thought of falling asleep directly after the promotion was completed in the psychedelic forest.

Lin An thought about it and felt that he couldn't afford to sleep for a few more days.

After glancing at the little Tanji who was full of expectations beside him, his heart softened, and after praising the little guy for a few words, Lin An decided to use this set of drawings to upgrade the casting.

He didn't finish the entire forging of the Sentinel's armor in the workshop given by the old man.

After all, this room was still being used by others, and he didn't want to be watched by others when he was casting the upgrade parts of Little Tanji.

After spending a full 70,000 yuan a day, I rented a highest-class forging room in the mechanical research institute, and then took out insurance at the price of 5,000 yuan a day.

Lin An then began to cast a special version of the Sentinel Armor.

He originally planned to hand over all the parts to Xiao Tanji to deal with, after all, this child's craftsmanship is much higher than his own, and the quality of the finished product is better than his own.

But after all, he is from a poor family, and the rent of 75,000 a day is somewhat challenging his fragile nerves.

The pre-processing of the materials has been completed in the old man's workshop.

This leaves the deep-machined parts to be processed.

Lin An thought about it, and decided to let Xiao Tanji be solely responsible for the construction of the core energy system.

Deal with some other accessories by yourself, and hand them over to the little tanji to review after the fact, so as to save time and at the same time, there will be no possibility of a decrease in the quality rate.

Just do it, this time his time is really calculated in money.