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Tsuki Ga Michibiku Isekai Douchuu - Extra 9 - Zenith Novels

Tsuki Ga Michibiku Isekai Douchuu – Extra 9

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Here is the Tsuki for this week, Blacksmithing 101 for making Katana’s

I am final exams this month and thus can only post 1 tsuki per week and 2 Amaku(for those who read that) per week. If you want more Tsuki extra’s then please Donate to Yoshi over at light novels Bastion. I already have translated 4 tsuki extras, thus please do not worry I will post them sometime during each week.

Thank you to Witty Andy for Editing

Please consider donating to Yoshi for more Tsuki

Tlnote: so if you have watched man at arms then you already know how to make a katana, so you guys can skip all of these tlnotes. Also I will leave a link to a man-at-arms video to show how to make a katana(sephiroth’s katana), but if you guys do not want to watch that please just read the tlnotes. Here is the link https://www.youtube.com/watch?v=-ySQratOnwk 


Tsuki Ga Michibiku Isekai Douchuu – Extra 9

Around that time in Asora 1

X day X month, Sunny day.

From now on, I will write down the events that transpired in this place that we have emigrated to, Asora.

I was requested to make a weapon called a Two Blade Sword* by Tomoe-sama.

Tlnote: it says Nihontou meaning Japanese sword but he interprets as a two blade sword, as in the blade is one in the beginning but becomes two swords through some gimmick.

I had never heard of this weapon before hence, I’ve been very worried about how to make it. We prided ourselves as the best blacksmiths in this world thus, no matter what, we cannot refuse this request.

However, when we were shown documents and other resources of blacksmiths making this blade, we were left speechless.

The weapon is classified as not having a single bit of magic; they do not use magic when creating the weapon either. This is the first time we had witnessed such a process to produce a blade.

They do not rely on magic or the fire spirits to control the furnace or even touch upon the will of the steel. They worked in a very natural process and seemed to be using their eyes to measure the situation and furnace when making the weapon. They possessed incredible skill. I felt as if the people making this had skills equaling or surpassing us.

They worked on a single blade with their entire being over many days, continually hitting it. Everyone who watched the footage could only say it was beautiful.

Tomoe-sama also has said the metal they use had no magic imbued into it, that would mean it was pure steel or some derivative of steel. The footage also showed other material being added to the weapon and they seem to be common materials…I cannot say much about this weapon.

This request was going to be considerably difficult.


X day X Month Sunny after a little rain.

We continued to discuss and decipher the resources she provided for us.

Fortunately, we did not get any difficult requests from Waka-sama and Mio-sama like the Two Blade Sword (apparently it is called a katana). But we did have a problem concerning the armor we were supposed to give to Waka-sama. It was due to our lack of knowledge about Waka-sama that resulted in this, we did not know that he would not wear the armor we made for warriors. Also, there was a problem regarding his magic power thus, we had to switch to mass-production to constantly replace Waka-sama’s armor. His magic power was quite immense and we had thought we had grasped the limit but sadly, that was not the case. Which was why Rugui-dono’s coat interested him greatly but when he first wore it and released a bit of magic power, it turned into tatters.  Coincidentally, when he saw the garment, he felt that the armor resembled the clothing from his country. The clothing was made with extra effort and a specialized process. I also asked Waka-sama about the other matter that had been troubling us.

According to Waka-sama, it seems the nihontou is just a combination of the name of the country Waka-sama is from and the word for sword there. The actual name of the weapon is Katana. In other words, the blade is purely single blade and is not a blade that has a gimmick that allows it to become two swords.

I have also learned from him that the metal used for the blade must have different hardness. This was a process of folding the flaps* of the blade many times over. Apparently, this was a very old way of making the sword but it was enforced by Waka-sama’s country to make sure only skilled workers will forge these blades. I should take this into consideration.

Tlnote: The flaps are the blade before it is sharpened and polished. The folding is to make the blade harder and stronger, western blacksmiths in modern day do not do this to make movie katana’s because it is inefficient. Japanese enforce this way of making katana’s to keep traditional sense alive.

In addition to learning about the flaps, we also learned that the blade was thin and single edged. This would mean the blade emphasized speed and sharpness. Tomoe-sama, even though she wants one, she has told us that she had never touched the real product before, she also emphasized that we must keep the sharpness to a maximum. The length was varied among these blades, and the way to carry the blade was by a sheath attached to your waist. The long blades have the edge facing downwards, the smaller ones face upwards*. Tomoe-sama wanted a long and small one with both facing upwards. I believe I heard from Waka-sama that the smaller one is called Wakizashi.

Tlnote: The long ones facing downwards are the ones called odachi, sephiroth’s sword is impractical and does not follow this rule. The Wakizashi is a reserve blade that is used when the Katana breaks.  

The handle and hilt were created separately from the blade and was made from cloth and wood. I did not understand this part entirely and there doesn’t seem to be any resource materials available to explain this part either. I wonder if they required a separate craftsman who would be specialized in this regard.

More and more I am questioning if this really is a weapon? This “katana” is too artistic to be called a weapon.  

X day X month a Rainy day.

We let the young people do the forging of the Katana prototype and let the older people analyze the resources Tomoe-sama provided us with. Tomoe-sama, herself seemed to be getting impatient that we had not made any progress towards manufacturing her blade yet. Although we have the materials required to create the katana, we do not understand the technique used to make it or how to properly temper the materials.

We have tried using iron in making the prototype, but it always ends in a strange result. However, we do not give up, blacksmithing without magic is just unknown to us but in no way is it an impossibility.

I also understand why the elder had split the group up in such a way. Because it is an unknown area, the young people would be more inclined to research and experiment to figure out this technique and technology. Adapting to new techniques is something the young people do better than old people. It is a rule of thumb for our people.

The older ones using their knowledge to analyze the resources materials will allow them to have a better understand of the procedure. It will be a combined effort of both generations and us old people will let the young people have a try to solve this the old fashion way too.

However, the resource material said this weapon required an incredible amount of care after each use. How is it used in the battlefield then?

From the various shapes and forms we saw, the blade was a very precious weapon in Waka-sama’s country. I wonder if it’s just a treasure sword that has no practical use? I will try to mention this to Tomoe-sama tomorrow.

X day X month today is cloudy.

When I had mentioned that, Tomoe-sama showed us footage of the Katana being used in Waka-sama country. It was beyond our imagination.

We were shown two things, the technique called Iai and a sword style using the Katana.

We saw a man with a superb physique that would not lose to us dwarves(I think it is a half or maybe an ancestor of them). He trained with a straw doll, we first wondered if that was training for a man of his physique. But when we heard the blade taken out, the sound, it was amazing. I think I saw the blade but I am not sure, I know that I did not see when he returned the blade to the sheath. It was unbelievably fast, he slashed the doll in half and I could not see when he did that.

The elder was even at a loss for words…No, every single person here who saw that was sweating incredibly.

Waka-sama was sitting in a dojo like place, the older male from before confronted a young woman and struck with his katana. The woman blocked it and tried for a counterattack but gets struck down. This weapon is a good fit with any user it seems, it does not matter whether it is a man or woman wielding it.

From this footage, I believe I have obtained a certain understanding about the bizarre weapon that is a Katana.

The Katana is not only a weapon, but rather a style of weapon. It was sharp and quick. It seemed to be an unbalanced weapon with these two specializations. However, the Katana is a weapon that grows with the user, it is a sword and nothing more. It is more about the wielder’s ability and if he is able to bring out its full potential. If an ordinary person used it, then nothing would happen. But in the hands of a master, it becomes a weapon of epic proportions. The margin of performance is too wide for a single weapon like this.

I trembled once more.

This is the most primitive blacksmithing technique, without using any magic, just intent. The will of the craftsmen is what forges the Katana.

The handle and blade must be forged with the intent of being one, they are not merely attached to the weapon for the wielder to hold it. That is why they decorate the handle, they hope to show the personality of the sword and craftsmen.

To be able to reproduce a Katana, I wonder if we can do such a thing?

This weapon, in a way, is something even I would consider to be the ultimate form of a weapon. This weapon is a weapon made with the aim to be a human sword. This could not be comprehended in the fashion we have been studying it in, we have been thinking this a solely as a weapon, not as a combined form.

I looked around and I am sure many people have similar opinions from the gazes and stares I see.

X day X month Sunny day.

The Katana did not contain any magic powers or any spirit power, just the soul of the craftsmen. That is the reason you must keep hitting the iron.

The reproduction of the blade is not going well, we have constructed a mold which has the shape of the Katana, but this did not please her. We felt humiliated, the production of the Katana was not moving at all and the elders have been giving up one after another.

Moreover, there was accident recently that resulted in the death of a person in Asora. The accident resulted from our careless management. It was truly unbearable.

As craftsmen, we know that the things we produce were dangerous and we had to pay close attention to these dangers. No matter how much Waka-sama forgives us, it was our blunder that resulted in the death of Tomoe-sama’s split form. I swore in my heart that I will forever keep this from happening again.

X day and X month Sunny day with fine temperature.

We finally had a breakthrough.

Waka-sama visited the elders, it was a request for something.

Recently even the chief of our village has been saying he believes it to be impossible. I understood his will and intentions completely. No matter how many times I see the footage of the Iai, I do not stop sighing at the beauty. I hope that one day I can touch the real product.

Waka-sama visited us because he will be leaving the city of Tsige and will travel to the city of Rotsgard. It was a greeting for that.

However, after chief and Waka-sama discussed something, the chief’s expression turned sunny like the day.

The chief gathered everyone to see Waka-sama off. Then made a declaration, he said it is impossible for us to reproduce the blade right now.

To not rely on magical power, spirit power, or even the metal’s will. This is a technique that we have honed for more than 1000 years, thus saying we can create something without those is impossible without many years of practice and knowledge. The craftsman there have the same amount of skill as us but they have practiced and honed a different technique than us and climbed a different mountain. He declared that we must climb that mountain slowly and not rush.

But this was not the end of his speech. His words continued.

He spoke to us saying, we must make the Katana with our technique and our materials. He told Tomoe-sama that he would give her the masterpiece she wanted.

We cannot imitate the techniques right now. That is why we must use our best techniques and materials to make our “Katana”.

My body gained strength from that.

The prototype that we will make tomorrow will no doubt be a masterpiece. Even if we cannot put our souls into it like those foreign craftsmen, we have our own way of putting our souls into it.

Sharp, quick, beautiful and strong. Those were the combinations we will use to make the blade.

A family of blacksmiths like us working together, then there is no one in this world who can compete with us. Let us go all out and realize this blade.

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The Fabulous


muka power

Here!!! *throw glass of lamb sauce*


You Fracking Donkey! So that’s where the lamb sauce went!
Get Out!



Kazuhiko Yoshida

prepare yourselves, the biggest (metaphorical) Mecha Nerd is coming to the anime world

From Thesun

This was not an interesting chapter truth be told, I found it quite boring cause it didn’t really say anything I did not know already.

Next one is hilarious


Thank u always for ur great work…

Tran Duc Anh

Holy jesus, the novelupdate chapter is buggy making me think that there is 2 chapters


so much romantisation of Katanas, it’s just a good cutting sword, nothing else really, the kinds of steel it use are just a byproduct of having a really crappy furnace and the folding technique is a work around, so unless the dwarves also got really crappy furnaces for making steel a normal sword would be just as good with much less work.

the disc-guard for katanas are total shit though, and should be replaced for a western counterpart so you have some proper hand protection.

From Thesun

truth be told, when I was doing research for chapter regarding Katana’s, japanese really did not use them that much in war. it was spears and bows. This Katana fad is just immensely well done marketing and propoganda


well yea it was a samurai weapon and the number of samurai was never THAT high, what amazing with the katanas are much more the fact that they came up with a technique to make decent weapons of of sub par materials than anything else, so whomever came up with the method deserve some respect.


Even the samurai preferred the bow and the spear in times of war, the Katana was more of a ceremonial weapon used for duels and events more than anything else, but I agree the romantisation of the Katana should stop already, exaggerating the product is no way to show respect.

Meng Yuanling

Forging technique was imported from china, katana is a curved tangdao. Using scrapmetal they made swords equal to that of high quality metal.


Don’t think it’s so much the crappiness of the furnace, as it was the scarcity of the materials, the folding technique was to beat out the imperfections.

Edit: If the furnace was crappy, they wouldn’t still be using the same kind.


Let’s not forget that they primarily used black sand to get their iron, which, if I am remembering correctly, has a ton of impurities in it too.

Pedro Alves

thanks for the extra


.     ∧_∧ Thanks!!
     (´-ι_-`) Nepu!!!


thank you for the translation.

Jo Ha

Thanks for the chap~!!!
Rather than chapter, it’s seems like an advertisement from author about the beauty of katana -_-

Reaper Phoenix

Thanks 4 the chapter!

Katanas aren’t meant to be used in extended battles. Some more realistic games would give them low durability.


really… why samurais have more than 1 blade? because those blades are disposable.

the accident where Komoe dies, is the one when they allowed the adventurers in asora right?


yup, around the time of the forest onis, and the adventures got some of makotos rings and forced a portal remnant open, killing 2 of them in the process too


Thx for the chapter o/


Thank you for the chapter~


thanks a lot for the chapter

Dark Jackel

That was pretty interesting. ?


Correction for the previous Extra Chapter 08:

The initial translation with the name “Yanase” was actually correct. I didn’t understand the sentence properly and made the wrong suggestion to you. Sorry about that.

Actually, “Yanase” is another person, full name “Haruko Yanase” (read Extra 02 to confirm this). So, in this chapter case, rather than it being 1 individual, Azuma and co. are actually referring to 2 individuals.

But the way, the sentence was presented, it was as though it referred to 1 individual.

On checking the raws properly, i found my error.

The actual part was “柳瀬と……長谷川?”
Which you initially translated as “Yanase……Hasegawa?” That’s what caused my confusing initially and suggested the “Nukumi” correction.

Later when i checked the raws, i found that “と” was used, and with my limited understanding i sort of know that “と” is sort of equivalent to “and” in english.
So, the actually translation would have been “Yanase, and……Hasegawa?”


By the way, why is the name of the first clone of Tomoe mentioned as Komoe in here?

Wasn’t it said by Makoto that he didn’t name the first one, so he named the 2nd one as “Komoe”?

dicky satria

maybe the author forgot about that or maybe everyone call her Komoe after makoto named the second clone Komoe . Maybe they make a grave for the clone but since he havent given the first a name, he just reluctanly write the grave name also with Komoe for the first clone

From Thesun

sorry, I know that but since I did not have any other name I went with komoe also I read the manga and i remember it being called komoe


I have seen the manga volume raws, and it doesn’t mention Komoe anywhere for her.
And a in-between chapter page which features her artwork, mentions her name as “Shin’s Split Form/Body” (the page below).
comment image


I have seen the manga volume raws, and it doesn’t mention “Komoe” anywhere for her as far as i remember.
And in an in-between chapter page in vol 01, which features her artwork, mentions her name as “Shin’s Split Form/Body”. And in vol 02 character page, she is mentioned as “Tomoe’s Split Form/Body” (the page below from Vol 01 and Vol 02).
comment image


stop spamming, you’re a bother and you’re shaming yourself


thanks for the chapter


Thanks for the chapter a lot of tips about blacksmithy, I have read an article about it a while back and the real deal is an exhausting and dangerous job, is not for anyone, and the Katanas need a really good background in the studies kenjutsus to truly use them well is not a wanna be that will be able to handle them.


Thanks for the chapter

Pantasma Namer

Thx for the Ex-Chappy!


“blacksmithing without magic is just unknown to us”
I always thought they could do blacksmith without magic, but I was wrong
No wonder bug world is lacking in technological department for a 1000 years since the founding of the Adventurer guild, they relied too much on magic


That katana fap nonsense got annoying AF Galway.


I guess that example footage(memory) of katana swordplay was one of those time where Makoto’s kendou teacher charged in the middle of his Archery lessons.

azaz zaza

Thanks for the chapter
ultimate weapon??that’s just stupid, I love the katanas but don’t overdo it authour


Thanks for the chapter.
Just a correction on a translation note [WARNING: Textwall]:

Tlnote: The flaps are the blade before it is sharpened and polished. The folding is to make the blade harder and stronger, western blacksmiths in modern day do not do this to make movie katana’s because it is inefficient. Japanese enforce this way of making katana’s to keep traditional sense alive.
^-I have never heard about the raw blade being called “flaps”, so I think it may be instead “folds”, which are the individual layers of metal that compose the blade (I say “layers”, but it’s all the same piece, repeatedly flattened, folded and forge welt).
Other than that, the thing about folding making the blade “harder and stronger” is a very simplistic explanation and root of many misunderstandings. Japanese blacksmithry is quite smart, but also lazy and incomplete: they skipped the Iron Age by borrowing incomplete knowledge from outside, then polished that knowledge and skills until they were “just enough”. In the quest of obtaining useable steel from iron sand (one of the worst sources of iron ever) they upgraded the bloomery “just enough” to get good-sized ingots, instead of polishing the technique to get something like a blast furnace that would give them a higher yield of better quality; this means they got very little steel from each (quite large) batch, and whatever steel they got was not only random quality, but also heterogeneous, which means that using a chunk as-is would result in a forged item whose properties varied a lot depending on the place (it would have soft spots, very hard spots, fragile spots, spots where it would bend easily…). To fix that, they used the folding method (which is needed to forge anything decent with bloomery steel and has been known outside for about a millenium and a half before the first japanese blacksmith was even born), since repeatedly flattening, folding and forge welding helps a lot in homogeneizing the final result. Like any beating of iron, it also improves the hardness of it, but such improvement has a limit depending (inversely) on the temperature of the steel and it’s reset every time the steel is reheated enough, not to mention that hammering steel takes away impurities and carbon content, so every beat above the limit softens it instead. Since japanese blacksmiths did not know the methods of tampering with the carbon content, they had to find a sweet spot between homogeneity and conservation of carbon (not to mention resort to forge welding steel of different carbon content to better control the properties).
The reason western replica makers do not fold the steel is because it’s very fine and hard work, quite prone to failure, and the only thing you manage is to turn good steel into one of a worse quality, so it’s a waste of effort, time and money that could very well cause the sword to delaminate.
The reason Japan’s government enforce it is due to magical thinking and chauvinism (if blacksmiths of the olden days did it, it must have magical properties that make the katana into a godly sword, or so they believe).

Side rant: it’s quite funny-not-funny how japanese people tend to compare katanas with western swords from a couple centuries before in tests that favour the katana just to make theirs look better, instead of comparing them with swords of the same time period or in tests more suited to a knight’s sword real usage (all of that despite the fact that during their Sengoku period they had a couple of westerners using western equipment that rose rapidly in the ranks because they were a force to be reckoned).

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