"The stone walls used on the walls of this building are joining stones and stones together in something."

"Yeah, I use plaster (Seiko) and sand mixed to bond it. We also use plaster for small stone and brick joints."

"(Plaster...... the one on the plasterboard that you hear so much about in building materials? I also sold it to the home center)"

Hearing it as plaster, Ichirana thought of the plasterboard used in Japan.

It is a common building material in Japan, used on the walls of houses.

Even so, since the plasterboard used in Japan appears to have mixtures besides plaster, it would not be pure plaster.

"I see... what is used for joining stones and stuff other than plaster?

"In addition to plaster, you use clay. I don't know how to use it or any other details, so I'll ask the city architect later to compile it as a dossier. We'll have it ready by tomorrow."

"Ah... I'm sorry I seem to have got some more work done. Best regards,"

Though Ichigo has a little respect for Isaac, who tries to take the initiative with a motivated look.

"(I'm not sure what it is, but I'm glad you look better)"

and exhaled inside.

"There's one more thing I wanted to ask you. Have you ever heard of Mr. Isaac as lime?

"Yes, it's the white one that sprinkles when there's a bug under the floor or something, right? I wonder if there was a place in the realm I could take it."

Why Ichigo is asking about this is not because he needed a separate insect repellent, but because he wanted to know if mortars existed in this world.

Over the past two days, I had even compiled materials such as earthworks records existing in Isteria and maps around Isteria, but I had completely forgotten to look into the technology that existed because I was too focused on compiling the materials.

I'm not talking about not knowing what can and cannot be used before planning a water cure.

Incidentally, a well-thought-out mortar is a lime mortar mixed with lime, earth, gravel, etc.

In Japan, it is a very common building material used by left-office shops to paint walls and walls.

Perhaps mortar has not yet been invented in this world because Isaac heard of lime and gave the story of insect repellent first.

"Dear Kazura, if you need lime, we will arrange it as soon as possible."

"It's still okay for now. If you need it, I'll ask you then."

"Okay. Aside from sprinkling lime powder, methods may also be used to smoke (a lot) vanilla and smoke it out. Investigate the insect repellent and submit the materials…"

"Oh, no, I don't need your report now. I still don't have a hand in hygiene issues."

Isaac hastily stopped trying to do more of his work.

Apparently, Isaac heard of lime and assumes that Ichigo is considering measures to address the hygiene problem.

"Really... if you need anything, please let me know. We will take precedence over everything."

"Yes, thank you then"

"And as of today, me and Havel will be serving as a side of Master Kazra. I will do anything with Kazura's instructions, so I hope you use us like hands and feet."

"What, close? Does proximity mean you're going to be one of my men?

Suddenly, Ichigo was surprised.

It is also natural to be surprised that he was not listening to Nalson or Zirconia beforehand, and that he suddenly told me he was "sidelined".

Maybe Narson is going to have a good talk at his breakfast table this morning.

"No problem if you think so"

That being said, Isaac stood up from his chair, kneeling one knee on the spot and slamming his head.

"In the future, I will defend you with my life. Thank you for letting me serve you with all my body and soul"

offered as if it were a knight's thank-you, and Yi Liang was

"Oh, wow."

and while responding,

"(... something heavy)"

and groaned in my heart.

When Ichigo and Isaac were talking in, Habel was preparing a carriage in the square of the Narson Mansion.

Havel is the only one around the carriage who is not yet in the carriage.

"Oh, isn't that a havel! Long time no see!

Havel, who was loading the carriage with a crate with maps and construction records in Isteria, looked back at the voice from behind and looked at the Lord of his voice and looked up.

"Brother..."

When did you come near me, right behind Havel, was the figure of his real brother, Alond-Rousson.

Alondo is a little over 180cm tall and 15cm tall compared to Havel.

As a result, Havel takes the form of looking up when he comes nearby.

The face, in contrast to the slightly child-faced Havel, is sharp and intelligently impressed with no place if you are the first person to meet.

The age is five years above Havel, 25 years old.

"Here, isn't that a lot of reaction to my real brother? It's been a long time since we've met again, so don't look a little happier."

"... you came home a lot sooner than planned"

Habel struck her inner tongue at the appearance of her brother, who shrugged her shoulders exaggerated.

I checked with my mansion butler the other day, and it was supposed to be the day after tomorrow that Alondo would return to Isteria.

If it was on schedule, Havel was scheduled to head with Ichigo to the village of Grisea early the morning after tomorrow, so Arondo and I should not have had to meet face to face.

But somehow, Arondo seems to have returned to Isteria earlier than planned.

"You can make the deal in Gregoria as fast as you want. I could have come sightseeing because it's a corner, but I wanted to see my cute little brother's face early, so I hurried back!

"Really? But you're right, I have to be on a mission soon. Unfortunately, I don't have time to deal with my brother."

"What, are you teasing me so early this morning?!? Usually, it's not even breakfast time yet!

"Those who put themselves in aristocratic society, like my brother, and military humans have different passages of time. You know I go to work early in the morning, don't you, brother?

To Arond, who is surprised with his eyes rounded, Havel sighs against him.

Havel can't help but get upset when he's dealing with this man.

I try my best to put it in my attitude, but Habel herself has given up half of the disgust with her facial expressions and attitudes because she slaps me deliberately and lightly every time I meet her face.

"Mmm... yeah... was it? Well, we don't have much time."

……

Alondo says every morning with a lovely (and pompous) look as if he had not noticed at all that there was no havel in his breakfast seat at the mansion.

What the hell did you describe earlier as a cute little brother, referring to Habel?

... Absolutely on purpose, I say.

A magnificent man emerged from the entrance to the square as Havel gently pulled his cheeks on Arrondo's attitude.

"Mm, it's Havel."

"Good morning, Father. Good luck with your long journey."

When Havel looked at his father - Nord-Rouson - he immediately turned away from Arond and lowered his head lightly.

"Hmm. Havel's no different?

"Yes, I'm more especially. Isn't it your father who's tired of traveling in carriages all the way from Gregoria? Better get some rest..."

"Yeah, but it's time to report the results of the deal and inspection in Gregoria to Master Narson. I'll stretch my wings for a while when I'm done reporting."

Havel exhaled heartily at the look of her father, who seemed fine for the long journey she had made.

Even if he is ill because of his long journey, in the unlikely event that he dies, the governor will be succeeded by Alond, his eldest son.

That's not the only reason, but I still need my father to live longer.

"Do so.... Oh, and I have one favor for you, Father."

"Hmm, what?

"Beginning the day after tomorrow, I will have to leave Isteria on a military mission for a while. So in the meantime, I'd like to take Marie as a squire..."

Marie is a young samurai working at the Louson family mansion.

Four days ago, when Ichigo stayed at the Louson Mansion, she was the one who looked after Ichigo around her.

When Havel offered to take Marie, Knoll gave her a slightly reluctant look.

"... Havel, I know you do..."

"Come on, what are you gonna do with him? You..."

"Alondo"

Unlike the way he fell in love earlier, Knoll calls his name and shuts up Arond, who almost said something to Havel with disgust stripping.

"Fine, you should take him. But don't think strangely. That's my property. It's not yours."

"Yes, I know."

With Knoll's consent, Habel answers somewhat relieved.

"... chip"

Seeing such an exchange between the two, Alondo sounded really unpleasant and tongue-in-cheek.

That night.

Havel was in front of a certain room, in a building that was appreciated by his servants, on the premises of his home.

The time is after twelve o'clock at night, and all but some private soldiers and servants are already asleep in the mansion.

Like yesterday, Habel carried out an inspection in Isteria during the day with Ichigo, and then helped organize the construction documents and maps, but earlier Ichigo.

"It's time to go home and get some rest."

So he thanked me and I arrived home.

On my way home, I got a grain of a little black food that tasted really sweet from Ichigo.

The sweetness of the food was felt delicious as it stained my stomach, either because I had been working from early morning to late night of the day and had accumulated quite a bit of fatigue in my body and head.

"You're already asleep..."

In a quiet dark hallway, Havel squeaked against the door in front of him.

The servants are paid some candles, so if you're doing any work in the room, the lights must be leaking through the door gap.

"... Master Havel?

As Havel turned her heels back to head to the mansion, she heard voices from inside the room and the door opened, and one girl turned to her face.

Marie, are you awake?

"Yes, I've been waiting for Master Havel to come home, but I was wondering if he would be home again today because it's too late..."

Marie answered Habel in a whisper, worried about her voice sounding around her.

Marie is not wearing a samurai outfit now, but a coarse fabric tunic that is long to the ankle she uses as a bedtime outfit.

When I was dressed as a samurai, I looked like Rin, but when I fell asleep like this, I felt age-appropriate.

By the way, Marie's age is thirteen.

"Um, if you don't mind..."

"Yeah."

When Marie invited him into the room, Havel laid her back on a coarse wooden bed installed on the wall.

In addition to the bed, there is only a small table and clothes hanging in the room, and the size of the room is only about three tatami tatami.

"Today, from my husband..."

"Marie, come here"

Havel smiled at Marie as she started talking standing, pounding the space next to her.

Marie looked a little confused, but as she moved next to Havel in such a fearful manner, she lowered her hips on the bed alongside Havel.

"... My husband told me this evening to escort Master Havel out of the mansion for a while from the day after tomorrow.... Um, thank you. Me..."

"Marie"

Next to Havel, on Marie's head, who began to talk with her eyes dropped on the floor, Havel gently strokes her hair to comb it.

"You can have a brother. 'Cause there's nobody here."

"... brother"

Marie looked up at Havel and softly deposited her head on Havel's shoulder as she responded with a gentle, smiling, haveless grin.