On May 13th, Jin and Erza, together with Yu and Mio, Reiko and Anne, visited the village of Kaltz.

Yes, this is Reinhardt's territory.

"Hey Jin, Erza, long time no see!　Chloe and Mio are looking well!

Reinhardt is looking good too.

"Brother Rai, long time no see!"

After renewing our old acquaintance, Bertsch met us at the entrance of Reinhardt's house, Lankenhaos.

"Jin-sama, Erza-san, it's been a long time."

"Hello, Bertje."

"Mr. Bertsch, where's Yuri?"

Juliana is taking a nap right now.

So we all walked quietly down the corridor to the reception room. Chloe and Mio looked a little sleepy, so Reiko and Anne took them to the room where Juliana was sleeping.

"I went to the Blue Lands with Potrock the other day."

Jin gave an update.

"Marcia has a new workshop, and they are building a new type of ship."

"What a surprise!"

Reinhardt was fascinated by the new ship.

"Reginald at Bina's place has grown up a lot."

Yes, I see that.

Juliana was born in 3458, one year older than Chloe, Mio and Reginald, which means she is the oldest. However, her birthday is on August 20, so she is the same age as Reginald now.

"Ha, we all have children now," Reinhardt laughed.

Reinhard laughed.

"Matheus is going to have a baby soon too."

"What?"

"What?　You didn't know that?　...... Mateus' wife is the second daughter of Viscount Jorgens Heckerath von Paddock, who lives across the street from Jin's mansion?"

"Oh, right."

Jin looked at Elsa sitting next to him,

"Yes, that's right. Her name is Ciara.

When he heard that Ciara Geist, née Heckerath, was Matheus' wife, Jin finally remembered.

He had met her once when Reinhardt was knighted. He had also heard that she was pregnant.

Jin really doesn't know much about such things.

Reinhardt's line made Jin look down.

"I can't ...... argue with that."

"Jin-sama is not a socialite, is he?"

Bertsch follows up as if to intercede.

"Well, you can tell Jin to ...... take care of that sort of thing, Master, you don't have to worry about it."

(Erza also took a step forward.) "Oh," came a look on Reinhardt and Bertsche's faces.

（Erza seems to have taken another step toward being a wife.)

（Yes, it seems so.)

In a low voice that Jin and Elsa could not hear, Reinhard and Bertsche exchanged words and smiled at each other.

* * * * * * * * * * * * *

"Yes, I wanted to talk to Jin about something."

Seeing that the situation had calmed down, Reinhardt spoke up.

"What is it?"

"Do you think there are hot springs in this village of Kaltz?"

Jin thought for a moment.

"Hot springs... ...... might be available."

"Oh, really?"

"Yes. Since this place is close to Lake Tosmo, there must be an underground water vein. And the temperature is higher deep underground. So if we dig deep enough, I'm sure we'll find it.

"I see. ......"

"If it's not a hot spring but a cold spring, I think it would be easier."

"Cold spring?"

Reinhardt asked back at the unfamiliar word.

"Oh, you can think of a cold spring as a hot spring with a low temperature.

Jin did not know the detailed definition either.

"I see, a cold spring.

In that case, you have to boil it before you can use it as a bath.

"That's instructive. What about this village at ......?"

"It's hard to say without looking into it."

In the case of Kaina village, there was a volcano-like mountain nearby, so they were able to dig up a hot spring that gushes out of the ground, but this is a plain.

Jin added, "You would probably have to use a pump to get the hot spring.

"That's not a problem. I can make a pump. But finding the hot spring is ......."

"Yeah, I'll take care of it. And hopefully we'll be able to find Reinhardt, too."

"Well, that's great!"

<

Reinhardt should be able to find a hot spring if he knows what a hot spring vein is.

"Well, let's start looking for it right away.

Jin sat up and Reinhardt followed.

"Erza, when the children wake up, please help me. I'm going out for a while.

"Okay, go on."

Erza nodded and gladly sent Jin off.

"Have a good day, my dear."

And Bertsch, too.

* * * * * *

Jin was guided by Reinhardt to a slightly open area.

"It would be convenient if there were a hot spring here," Reinhard said.

"I see."

It seems to be a good place to build such a facility.

"Well, let's look for it. ......<>! ......mmm ......"

Since he couldn't find it once, Jin tried several times <<> in different places.

Then, for the fourth or fifth time, he said.

"There it is!　It's a hot spring!　It's not a cold spring!

"Are you sure, Jin?"

"Yes. Reinhard, try using ground search in this direction, at a depth of about 200 meters.

Following Jin's instruction, Reinhard decided to use earth magic.

"This way?　Okay. ......<!"

Not sure if it worked the first time, Reinhard used his magic once more.

"<>!　...... Oh?　Is this ......?　This is it!　Jin, I got it!"

Reinhardt now understands what a "hot water vein" is.

"Yes!　Now Reinhardt can search for hot springs!

"Yes, thank you, Jin!

Let's go digging then.

"Okay."

Jin and Reinhardt worked together to dig a hole for the hot spring.

Reinhardt digs the hole, and Jin solidifies the walls of the hole.

is Jin's original engineering magic, which melts and solidifies materials without using heat.

Thus, by the evening of the same day, a hot spring was dug.