Downs is fast-tracked, and Wren has long since lost the tinted glasses he had for him.

At first, Wren always thought that teaching this kid magic could only be taught at noon, because it would be finished sooner or later.

Now it seems that there is a high probability that Ren, a mortal, cannot understand the pace of genius growth.

For a disciple of this grade, Ren just wants to say: 100 million more points.

As a Master, your mentality will also change.

Far away, he said, "Don't think about other magic today, don't overdo it." After that, Wren drifted away.

He had to leave quickly, after all, holding the master's shelf was sometimes a very hard thing.

After confirming that he was out of Downs' range of perception through the fire bat, Wren burst out laughing.

"Hahaha! Earn over! ”

On the retina, a system prompts to swipe the screen at high speed.

This time, the [Tireless] system popped up several subsystems.

The first is [Qualification Sensing]: within the range of Wren's perception, all young disciples with a promising future in magic will be highlighted and displayed on Wren's retina.

Wren's resentment came immediately: he still couldn't get out of the valley......

The second is [school address]: I don't know what the hell is going on, the system believes that this broken valley where birds don't is the main school locked by the [Tireless] system. Teaching disciples here can enjoy 2 times the speed of teaching. Master's Elemental Sensing ability is increased by 100%.

The third is the [Security Division] that makes Wren feel a little weird.

Security Section:

[Monitoring System]: The legendary Fire Bat King, and 24 Fire Bats.

[Dragon Head School Gate]: Hang the White Dragon Head, which can deter all enemies at or below the high level.

[Active Tower]: Tesla Tower, the full power range is 1.5 kilometers in radius, beyond the full power range, its final lethality depends on the master.

The last one is the [Elemental Pool] that gathers mana.

The elemental pool belongs to the school, and as long as Wren does not leave the school area, he can invoke the magic in the elemental pool at will.

This is a good fix for the bug that his so-called 'Legendary Archmage' master can't use magic at will.

What makes Wren have a toothache is that this [Elemental Pool] is more like a battery at this stage. He couldn't do a good job of filling the elemental pool with mana.

Opening the elemental pool in the system, Wren was dumbfounded, and now there are only two ways to recharge:

One is to use the [Tesla Tower] to charge the elemental pool with magic on a stormy day.

The second is provided by disciples......

Well, the Bitter Downs is charging this elemental pool, which is capped at a total of one million mana, at a rate of 5 mana per hour.

The problem is that any level 2 magic spell requires at least 500 magic points, and what's even more annoying is that in the case of binding the elemental pool, the number of times each magic can be used per day is limited, and it must be a magic that the master or disciple can play......

If it weren't for the system's recognition that Wren's move to kill the white dragon was a level 7 plastic energy magic [Advanced Lightning Strike Technique], Wren's current cottage school didn't even have a powerful magic to guard the door.

Seeing this, Wren withdrew his gaze.

"It's still unreliable to rely on the sky to eat, something must be done to speed up the charging of the elemental pool."

Do what you think.

Anyway, there is no need to teach the disciples today, Wren threw himself into the blacksmith shop and began to burn glass.

Admittedly, this abandoned blacksmith shop was not as bad as Wren had originally thought.

First of all, the temperature of this furnace is extremely unscientific, it looks like a typical earthen oven, but it can easily soar to 1500 degrees Celsius.

The second is that the burned glass has fewer impurities than expected.

Finally, the ventilation system of the blacksmith seems to imply some kind of power that Wren cannot detect.

Alas! The end of science is magic and metaphysics.

Wren didn't want to.

After more than a dozen attempts in a row, Wren finally managed to make a decent convex lens.

Looking at the large glass bump that was gradually cooling and was almost 60cm in diameter, Sensei Rendo was very happy.

He didn't know how good this convex lens could be, if the explanation of the [Elemental Pool] didn't lie to him, as long as he injected a high enough concentration of [Light Element] into the ground in the center of the valley, it could also be converted into mana by the elemental pool and stored.

The next day, when Downs was looking for Wren to continue the lesson, he found that his master had run away to the mountains.

"Here, take a hand!"

It took the two masters and apprentices half an hour to finally install the convex lens the size of a basin onto a metal bracket in the shape of a zigzag.

"Master, is this what you call a convex lens?"

"Hmm." Wren wiped his sweat and smiled: "Downs, although in your eyes, everything I do is magic. Actually, is it possible that what I am doing is not really magic, but the purest form of [science]? ”

Downs' expression was a little odd.

As soon as he saw the way he was wandering out of the world, Wren knew that this kid was thinking too much again. Downs is 17 years old, which happens to be the age of fantasy. Wren can't say anything about him yet.

"Be a man! Be down-to-earth and don't think about one step at a time to reach the sky. How can there be so many terrifying spells in the world that kill a large number of enemies in an instant? Consolidate your existing magic first......" Wren was preaching, when he suddenly heard the Fire Bat King's scream.

Through the soul connection, Wren knew very well that this was an alarm!

"What!?"

"Master! Look over there! There was a rare tremor in Downs' voice.

His own good apprentice is not a stunned young man who has never seen blood. In the first battle in the city of Rahmancho, his performance was remarkable.

A mage who has seen blood is definitely much better than a pure academic who can only study magic.

Following the direction that Downs pointed, and with his [Eagle Eye Technique], Wren finally saw these villains who committed suicide on their own.

A large group of ...... Devil!

In the world of Kaos, the devil and the demon are two kinds of beings.

The former belongs to the camp of lawful evil, and the latter is chaotic evil. To put it simply, none of them are good, it's just that the devil is more disciplined and more organized and disciplined when fighting; There are more demons, but when fighting, they like to fight Natsuhime.

Wren suddenly had a bitter mouth.

At this moment, he finally realized that sometimes people are really afraid of being famous and pigs are afraid of being strong.

Perhaps he succeeded in bluffing the nations of humanity.

The problem is that the good camp is willing to talk to him about the rules, but what about other races that don't follow the rules?

[Neutral] forces are not so easy to play.

If Wren is a vassal of a human country, he will be able to find someone to top the tank at this time. Anyway, the sky is falling, and there is a tall one on top.

At this point, he himself was the tall one.

Along the narrow mountain road, a brigade of hundreds of devils is coming.

First, a man with typical goat horns and brownish-red skin came to the mouth of the waterfall, swept away the dead white dragon brother with contempt, and smiled.

He was dressed in a magnificent red flannel robe, the collar and cuffs of the robe were all trimmed with gold, and the precious rubies were only the buttons of his robe.

As he walked, each step left a blazing footprint of flame, as if he was not stepping on a cold mountain path, but a trail in a flame hell.

Behind him, two rows of devils lined up.

In the front row are some devils with green skin, stout and short stature. Based on the Devil's Atlas sent by Garnes' advisor last time, Wren recognized these irascible looking creatures as Anzu Demons. In the rating of the Adventurer's Guild, each one is a high-level devil that requires a team of high-level adventurers with an average level of 7 to fight.

But at a glance, there are at least 20 such guys.

In the back row is a large group of Tiger Peak Demons who look like wasps, these guys are not strong, probably at the level of fire bats, but their stingers are very troublesome.

The system scanned out that the total number of the two devils was 218.

It is no exaggeration to say that such a devilish army is enough to destroy a county.

The half-devil man at the front of the line, who was a human-devil half-devil, cleared his throat and made a sound as bad as a duck.

"Human mage! I am the son of the greatest devil, Anak Mephis, Falcao Mephis! I don't care who you are, and I don't care what strength you have! I now command you to submit to me immediately, or the souls of you and your disciples will be scorched by the flames of hell for all eternity. ”

The answer to this domineering speech was a colorful beam of light descending from above the clouds.

Without warning, the light swept across the clear sky and landed on the mountain, and then a strange refraction was cast over the head of this thing surnamed Mephis.

The half-devil who had just made an arrogant declaration of surrender suddenly froze.

The demons behind him also looked up at the colorful beam of light hanging from the sky, they didn't know the master and apprentice of Wren on the top of the mountain, but they knew similar methods.

An extremely unsettling feeling enveloped the entire Devil Brigade, a feeling that was all too familiar, a century ago in front of the Holy Mountain of Light, the same terrifying aura had beaten them to pieces, and the desperate souls had to return to hell and be forced to regain their petty devils.

Who knows, I will actually see this blow again in this remote corner!

"[Heavenly Light]!?"

The devils let out a terrible scream in unison, eager to shrink their burly bodies to the size of fists, or find a crack in the ground to burrow.

It's late!

Seven-colored rainbow light swept over the narrow mountain road that only allowed a carriage to pass, and knocked the three-digit devil to ashes.

When the dust falls, how can there be an army of demons?

As far as the eye can see, there is only a mountain road that exudes evil aura and sticks the walls with the blood and flesh of the devil.

On the top of the mountain, the two masters and apprentices looked at each other.

"Downs, believe it or not, it's just a large convex lens used to focus the sun's rays."

"Master, I know, this is also [science]!" That's what the good disciple said, and his eyes clearly said, 'I believe you are a ghost'.