"Fire, red one, hot one. Come to our palm. "

A voice rings in a schoolyard where day still can not rise.

The little whisper Alto Voice is still from a young boy.

Good morning. Today we will get even better, Sig "

!"　/(aux) (1) it is assuredly that .../can say with confidence that .../(2) (ksb:) did not .../ Do not be surprised if you are a teacher. "

I trembled with a voice when I called out, Siga turned around with a bad looking expression.

I do not know when, but recently I noticed that he practiced magic so that he could hide secretly every morning. The attitude of the lesson is bad he is not good, but he may be saying that he is learning the most enthusiastically.

「……After all, it does not understand that magic fire is not good. "

Show me a tiny flame floating on the palm, Sigu mutters. It shook in front of my eyes and faded out.

The flame he produces is not stable at all. It was the same as me and the compatibility with the fire was too good, perhaps the control might not work well.

"But, have you come out longer than before?"

In my words, Sig showed a complex expression. He is making shapes far from people, but its expression is very easy to understand. At least I do not seem to be pleased.

"I am hard. I am fast. I am sharp. I am heavy. I am strong ...... "

While piling the spell over and over again, Sig holds the fist.

Control of reinforced magic is difficult. But, as far as he is concerned, that concern was utterly useless.

Take a step forward, Sigs out a fist.

The body's work taught by Yuuki is as smooth as not being compared to once.

I took it with one hand.

It is not a figure of a dragon but a figure of a person.

"Hey, Teacher"

He is getting stronger. That is no mistake. /(exp) though/much as/(P)/

That step was too slow.

"When will I win against you ...?"

I did not have the answer to him.

＊　＊　＊

"I'm thinking of starting agriculture in earnest from now this year"

/(adv) (1) (on-mim) at last/at length/(2) (on-mim) barely/narrowly/just/just

It was reasonable for Yuki to return to my declaration.

It will be about five years this year, starting with a special classroom. Plant cultivation itself has been tried on a small scale since the second year. At first it all withered until it was spectacular but from the second time it also succeeds in cultivation and the amount that can be taken little by little has come.

But there was a reason for not starting agriculture seriously.

"To do it seriously, you have to make a big field"

「U……Do you do that again? "

I remembered my previous work. Yuki frown with disgust.

The excavation of the soil, the grass, the plowing excluding the stone was a considerable hard work even in a small field. Far from being heavy machines any more, agricultural tools are rare.

"How big is it made?"

Yeah. That's the problem first. "

Purple's question, I nod.

How big is that?

Even the means to answer such questions, I have not had it.

Because the unit of length is not decided.

Not only the length. Both volume and weight. There was no definition of so-called metrological balance.

Of course, because the word we usually use is Japanese, we can use such words as meters or kilograms. But, then, once it is told how long it is a meter it will be in trouble.

Certainly the unit of one meter was defined based on the size of the Earth or the speed of light. However, because we can not usually use such things, metric prototype existed, it should have been strictly managed.

Of course, strict precision is not necessary to use it at our civilization level. Since it is okay for the size to be large, saying, for example, feet is very easy to understand, as its name is based on the size of a person's foot. It is easy to understand, but there were problems with using it in this world a bit.

What makes a difference in physique, the body itself is completely different. Lizardman does not stop growing and it grows steadily and Lycosus Centaurus is the same as a wolf and only the fingertip is in contact with the ground and it is hard to tell how far you can say it is the size of the leg. There are no legs in the first place to reach mermaids.

And it was not limited to different races, it was true to human beings. They are obviously individual differences much more than the Earthling in my memory. Even if the giant huge Dharuga is unusual for drift, there are quite a long body and, contrarily, short stature is oddly many.

"I wish I had something unchanged in length"

You can make things that are standard with trees and stones, but the stones are heavy and difficult to use, and the wood will weather immediately.

"There is not it"

Then you see me when you say that Nina is saying what.

"It would be appreciated if it would not change length in hundred or two hundred years if possible, but ..."

"It has not changed"

Was that something like that?　I inclined my head.

Nina seems quite unchanging, but even such a girl is growing slowly and slowly. He stretched a little bit more than when I met and became mature.

"At least this five hundred years, you do not change at all"

「Eh？　No, I grew up ... .... "

In other words, I finally realize. By the way, as a dragon I grew bigger but the appearance of humans has not changed at all. I do not know if it is because it is magic or because the dragon's life expectancy is tremendously long, but I remain as a young man about twenty years old.

"Have not you changed your height or not?"

No, I am not!

Nina answered that as thought. She is watching me almost every day If she says it is no mistake.

"Well, why do not you try to base me ...?"

My height in the previous life was surely about 175 cm. Latter year may have shrunk a bit to flowing though, I remember well as it was a good figure as it was, as it was when I was young I did not change much.

"Yuuki, will you scratch the same position as my back?"

Okay! Onii-chan, do not move, do not you think? "

When standing next to the pillar that supports the roof of the classroom, Yuuki pulled out the sword altogether. Then it jumped lightly and it was one flash. The wind moaned my forelock lightly and I heard the noise of trees shaving from my head.

"Seven equal divisions ... ...Well, seven is difficult. "

If you divide 175 by seven, it becomes easy to use by 25 centimeters a distance, but it is surprisingly difficult to say that seventh is equal.

Oh, wait! Murasaki, can you give out this length of vegetable for a while? "

"Yes"「はい」

While tilting his head, Mr. Purple extended the thorny vines by doing it from the fingertips. When I cut it to the same length as the height, I make a circle and a circle. And he painted a seven-pointed star in the circle.

It is very difficult to evenly divide the line into seven, but it is relatively easy to draw a seven-pointed star. I drew it over and over again in the previous life that was occult mania. It definitely is useful in such a place.

The number seven is the only one among the natural numbers of one digit, which is not divisible by 360 degrees. One week is seven days, and the number of holes in the face is seven eyes, ears, nose, mouth, and it has an important meaning magically. Well, in the past life there was no meaning after all.

……That reminds me so far, but I guess something magical is useful in this world.

What's happening?　/(int) there! (used to call someone's attention to something)/

"If you do this, it's easier to get an even length."

To Nina's question, I cut the loop at the place where the tip of the star touches the circle, and bundle it. The seven vines were all about the same length.

If you draw a pentagram star in the same way on the cut vine this time it is a finish of five centimeters. If you have a compass and a ruler you can draw a pentagram star perfectly accurately, but this is too fast for you to draw with hands. It is the basis of the basic.

If you draw a five-pointed star again with a vine of five centimeters, you can do it even a centimeter, but the vines themselves are bent with meanders and it seems that the error is slightly bigger, so it will not require any fine units so far so far ?

"Hey, hey, what's that?"

I do not understand much what I am doing. While looking at the cut vines, Rin asked. People other than her also seem strange, so almost all members do not seem to know well.

"For example, if there were ten water apple and three lily potatoes, which is more how many?"

"Seven Mizugoringo!"

I nodded in honor as Rin hands up and answered Rin.

It's a simple calculation, but the gift of Nina's steady education.

"Then how big is Purple and Nina?"

When asked Rin compares Ninaga with Mr. Purple, and wrinkles between the eyebrows and worries.

And as I noticed something, I brightened my facial expression, pointing to purple 's chest and saying.

"Two violets!"

I ought to slug you.

Ninna clasp the fist to Rin says confidently. ... ....That reminds me that you have not grown at all, I thought, Nina 's fist was unduly shaken down on my head.

……It hurts so terribly.

- What? - Not that.It is tall. Even if I know that Mr. Purple is higher, it will be a problem if I told you how long it is? "

"Is not it about this, is it?"

Sign expresses the difference in height between purple and Nina by hand.

"You are... That is to name that "this much", is not it? "

"Yes, that's right!"

In Luke's words, I cried with the desire to knock on my knees.

"The length of objects is counted in centimeters, as it counts two nuts and one deer. Five centimeters with this small vine. One of these medium vines is 25 cm. My height is 175 cm. "

"Jaiku Nyanko ... ...."

I do not usually touched that big number usually, Lynn repeats dismayedly as if not coming with pins.

“Hey! How am I? "

The first thing I asked was Sig.

"Murasaki, can you get the vine out again?"

Yeah. Please wait for a moment. "

Purple picks up the vine of twenty-five centimeters that I cut, and closes his eyes to concentrate while holding it. And slowly putting thorns out from there ahead of time, I switched the vine which I picked up several times.

"How about this, please?"

“Great!

I shouted unexpectedly to the vine produced by her. Mr. Purple gave it to me because it was a vine in which thorns grew every twenty-five centimeters. This is very useful. At the same time, she also shows that she perfectly understands the concept of length units.

"Okay, then stand in front of that pillar. Um

Scratch the pillars according to the back of Sigu and measure the length with the vine that Murasaki made. It was slightly higher than the fifth thorn and it was nearly perfect if adding vine of five centimeters.

"Sig is about a hundred thirty centimeters"

"Older brother, measure me too!"

What about me?　I'm...

"I also want to know"

He seemed to want to know everything, and physical measurement began suddenly.

Nina is 155 cm. Purple is a little short of 170. Luke is a little worried about where to measure it, but with his head standing up to a height of 160 centimeters. Similarly, Phosphorus is measured about 100 centimeters, but it was 170 centimeters when straightening the body and measuring it to the end of the tail.

"Yuuki is ... ....One hundred thirty centimeters? "

"Well, it's the same as myself!"

Finally when I measured Yuuki, I was surprised that Siga rounded his eyes.

"That is true, is not it?"

Yuuki swings his hands alongside Sigu and compares the backs of each other. Five years ago, siggers should have been somewhat bigger when they first met.

"How old are you now Yuuki?"

"Fifteen!"

Will it be so much? Certainly she has grown a lot. I got taller and I think that the body which has hardly changed from a boy has become like a female.

"It's got bigger, is not it?"

Yes please. It's pretty obvious, this is what "

Yuuki replied that he was grabbed by the bulge of his chest and was not particularly concerned.

I do not feel like having grown too much, maybe because of somewhat childish personality somewhere. Climbing up to my body like a little monkey will not change.

"Stop it, do not go away"

Although I instinctively recommend it, in this classroom where the female rate is very high, it seems only me that I feel embarrassed. Sigs who are the only men, Lizardman women did not develop the breasts, or seemed not to have a feeling around here.

"You should actually measure your weight, though,"

"Wow!"

"It's about weight."

To Phosphorus which tilts his head, I answer so.

However, that is more difficult than your height. How can I make a scale?　I could not honestly consider it. Can you draw water and measure it with a balance? I do not really know how to make a balance, too honestly.

"Is there also a loss of weight in the weight?"

Yes please. The approximate things in the world can represent the size by number. "

"Well, Mago also?"

In the words of Rin, I breathe in breath.

Indeed, magical strength is large and small. But I have never had the idea of ​​expressing it numerically at all.

Because magic, the kind that people can use and its strength are too different. It seems to be possible to measure with one standard like a stature ... ...No.

"It may be possible"

I came up with something, I said so.

If it can not be measured with one standard, it should be measured with multiple standards.