Fiona has been smiling on her face for the past few days, even in the face of Donne, who embarrassed her before, she didn't raise her eyebrows, which made Don very stunned.

The reason for this was finally revealed when Fiona came to report to him today.

"Hilton and Thomas are doing very well at Bein, and the good is unexpected!"

Fiona said with a fluttering eyebrow: "Hilton said in the letter that the sales of mints and soap soap in Bain are very hot, and they have almost become synonymous with our Datang Chamber of Commerce. ”

"Oh? That's good," Tang raised his eyebrows, "This batch of goods has been replaced with new molds, and it has our trademark, right?" ”

"Of course! The goods without the logo were sold locally in the store outside. ”

Fiona said happily, "Hilton reminded me to urge the workshop to increase production, and the next time they come back, they are expected to take a large number of goods with them. ”

"Then increase production."

Don said disapprehantly: "Now the work of those workers is very easy, even if you add some pressure, right?" ”

Fiona, of course, knew that Don was not a lord who liked cruel exploitation, and the situation in the workshop now was indeed as he said, and the work of the workers was very easy, but ......

Fiona smiled bitterly: "I think so, but the problem is that the efficiency has not improved." ”

Tang En was stunned for a moment: "What's the matter?" Are they slacking off? ”

"It's not, it's just ......"

Fiona opened her mouth and said a little unspeakably: "It's just that it's too hot inside the workshop, it's already in the middle of summer, and the workshop is still a fully enclosed structure, and the workers work very hard in it, although they didn't say it, but I went to observe it, it's too stuffy inside, and it won't take a while to come out to breathe......"

"I'm ...... dizzy"

Tang En was speechless: "Why didn't you say such an important thing earlier!?" ”

Fiona was also dumbfounded: "I thought you already knew!" Aren't you even aware that it's getting hotter? ”

"I really didn't find ......"

Tang En sneered, since he felt a little hot a while ago, he had maintained a spell shield on his body, keeping the temperature within a comfortable range, and he forgot about it after a few days.

"Actually, it's not too important, just open a few ventilated windows......"

"Not important? No, it's important! ”

Don interrupted her with a wave of his hand: "If you stay in the stuffy environment for a long time, it will be a big problem...... By the way, they are hydrated in time, right? ”

"I didn't pay attention to this......"

"No, this issue must be resolved as soon as possible."

Don got up in a rage and pulled Fiona and ran to the workshop.

The door of the workshop was open, and Don lifted the spell shield, and as soon as he entered the workshop, a wave of heat mixed with an unpleasant smell came to his face, and his feet were softened, and he almost fell to the ground.

Fiona had been here a few times, so she was used to the smell and temperature.

"No, no!"

Sweating coldly, Don opened his spell shield again and let out a long sigh of relief.

He had always enjoyed the air conditioning treatment on Earth, and after coming to Brandal, he had a spell body, and he had never thought about this problem.

See the workers sweating in the workshop...... Sweat like a pig?

Don's eyes suddenly fell on the female workers, their thin clothes were completely wet with sweat, and they almost became translucent, they were obviously hot, but they were not passive at all, but chatted with each other in a low voice, and at the same time were busy with the work at hand.

Tang En looked at it for a while, subconsciously swallowed his saliva, and then hurriedly looked away, regained his composure again, and said in a deep voice: "It was my negligence, I'll solve this problem." ”

"How to solve it? …… Don't you ......?"

Fiona's eyes widened, remembering that Don was a powerful mage who could do anything, and that there might be a way to solve this problem.

Of course Tang En has a direct solution to the temperature of the workshop, in fact, a Frost Magic Array can solve this problem, but the problem is that after the Frost Circle is kept here, it is completely useless when winter comes, it is purely a waste of resources, so it is not cost-effective.

If there is air conditioning...... Air conditioning?

Tang En had a flash of inspiration and pondered, but after a moment, he clapped his hands: "There is a way!" ”

Tang En had just been almost turned back to his way of thinking on Earth, but fortunately he had come to his senses, in fact, it was quite simple to throw away the compressor, electricity, and refrigerant, and simply build an air conditioner that could exhaust cold and heat, all that was needed was three simplified small magic arrays.

Don thought of it, in order to let the workshop experience the effect of the air conditioner as soon as possible, so he still planned to make a few installations by himself first, and then slowly let her join in to help when Elija could control her magic stably in the future.

Considering that it was just a very simple function, Tang En did not use the precious magic metal materials in the package, but went to the blacksmith shop to get some iron ingots, which were enough to make a shell and a substrate to carry the magic array, after all, it was only three simplified small magic arrays.

After returning to the house, Tang En immediately began to act, the iron ingot quickly stretched and deformed in front of him, and soon turned into a flat plate, and then Tang En took out some ordinary magic dust, and carved three simplified magic circles on the tablet according to his idea.

Although it is a simplified magic array, because the three magic arrays share an energy circuit and are also superimposed on each other, the requirements for the magic level are very high, and ordinary magicians can only sigh at it.

"A Frost Circle, a Flame Circle, weakened power, simplified range, and a weakened Hurricane Circle to send wind outward...... Well, it should be all right! ”

Don nodded with satisfaction, since there is no need to pump air and no refrigerant to conduct heat, so after the assembly of this magic version of the air conditioner is completed, it is just a cuboid, and it is very flat, with only one air outlet underneath, and on the side is a dark grid for placing magic crystals and three switches.

That's right, this magic version of the air conditioner has no temperature regulation function, no swing function and function, only three switches for cooling and heating and wind control, and the set temperature is the benchmark that Don had just determined with Fiona's feelings when he drew the magic array. [e1]

Controlling the wind power is controlled by Don by adjusting the mana crystal input to the magic power of the hurricane array, and the greater the mana input, the greater the wind power.

"W-This thing is amazing!"

Fiona was speechless in shock, magic has always been the preserve of those mysterious magicians, even if many people know that magic can make people's lives more comfortable in the heat or cold, but they can only sigh.

But what about Donne-sama?

Just using some small means, the high-end monopoly of magic was interrupted!

As long as he has this thing he calls an air conditioner, even ordinary people can enjoy the convenience and power of magic when they buy it and install it in their home!

"Lord Lord, that, that ......"

After the shock, Fiona blushed and said a little wry, "You—can you put one in my room?" ”

Don readily agreed: "Huh? Absolutely. ”

"You've been so good to me—"

Fiona was overjoyed, and just when she thought that Don was still a little different from everyone else, she heard Don say to herself: "Speaking of which, it's hot, so let's make a few for Tina and the others by the way...... By the way, there is also Eliya's family, Elsa's mother is not in good health, so let's give them one. ”

Illya and Elsa won't talk about it, but、But even those maids have it!?

Fiona's eyes widened, and she didn't know what to say.

Could it be that in his eyes, he has the same status as those maids!?

Damn it!

Damn!

This guy, this guy, why doesn't he always play his cards according to common sense!?

Normally, shouldn't I be moved by the situation, and then take advantage of the situation to say some sweet words and start an offensive??

Why is it so romantic, but he ruined it with a word!

And it's milli! No! As! Relaxed!

Deliberately, right?

He must have done it on purpose, right!?

This kind of guy, this kind of guy deserves to be single for the rest of his life!!

"Tsk, magic is such a handy thing......"

Don, who didn't notice Fiona's little emotions and easily made up a magic version of the air conditioner, couldn't help but sigh, if there was such a power on the earth, I am afraid that the technology on the earth would not develop so fast.

After the high-end people have mastered and enjoyed the convenience of magic, where will they have the motivation to study the basic knowledge of physics and chemistry, and it is no wonder that the people at the bottom of the Plandal are still living in the feudal period.

After trying the magic air conditioner he had just made and making sure that it was completely fine, Tang En immediately drew a gourd in the same way and made more than a dozen magic air conditioners.

Don stood up: "You guys wait until you come back and install it, now go and put the workshop on it first, you can't let them continue to work in that environment." ”

"I see!"

"Huh? What's wrong? Feel like you're a little distracted, huh? ”

Fiona was angry for a while, and her face was speechless: "It's nothing! Let's get down to business! ”

"Well, let's go."

Tang En waved his hand, and said casually as he walked: "Speaking of which, the midsummer moon has arrived, this thing is a good commodity, how much do you think those nobles are willing to spend on this?" ”

Fiona, who was wandering in the world, came back to her senses, and a spirit: "That's right! Oh, my God! How could I not have thought of such an important thing! ”

"Huh?"

"Your Lord, you are such a genius!"

Excited, Fiona jumped up and kissed Donn on the face, and then rushed to the study: "Go install the air conditioner, I'm going to write a plan for this thing!" ”

"This ......"

Don, stunned, touched his cheek, laughed and cried, shook his head and went to the workshop on his own.

===

PS: When it comes to it, it works.