The golem that Jin and his team started analyzing has a structure with a tightly separated axis of rotation.

Jin is proceeding with his analysis, thinking that this has the advantage of making it easier to understand the motion control. Although the strength will be reduced.

"What we should focus on is this material."

Raig Armor said to the team members.

"It's a steel-based material, but it's an alloy, and it's very tenacious and hard."

He seems to be able to use , but unfortunately his basic knowledge is limited.

<> does not tell you what you don't know. So,

"I would like to know what metals are added.

So, "I want to know what metals are added".

Jin secretly <> the added metal is <.

Vanadium is an element with atomic number 23 and is soft by itself, but when added to iron to make alloy steel, it makes the crystal grains finer and increases strength while maintaining toughness.

The amount of addition is only 0.1 percent.

（You seem to know a lot about magnesium alloys.)

(He seems to know a lot about Magi alloys, though.) In his heart, Jin decides that the scientific knowledge in this country is still biased.

And, after the magical muscles during the day, Jin decides to keep his mouth shut this time.

"Ummm, I know iron and carbon, but I don't know the elements that are added only slightly."

"......"

Everyone is tilting their heads.

"How about gin?"

"I'm a bit ......"

When Raig confirms that no one else can figure it out, he says, "Hmmm..,

"Well,...... I guess this is inevitable.

"Well, I guess we'll just have to do this," he blurted out.

"I guess we'll have to ...... ask our guest, won't we?"

"Guests, sir?"

Jin asked back at the unfamiliar word.

"Yes, my guest," he said, "is Lord Rhodes. You have heard his name, have you not?

"Yes, yes."

Jin was startled by the unexpected mention of Rhodes' name.

"He can't give me any advice on weapons, but he can tell me about these materials.

His knowledge is so deep that no one can match it, Raig said.

"...... Well, let's go and ask him with some samples of the material. Me, Cu, and Jin."

"Uh, yes."

Raig says it would be good to see you for the future, and goes to tell Carrion, the head of the office, no.

"Hmm, okay. But three is a lot.

"......I understand."

Rigg nodded and came back to the team members,

"Did you hear me?　We're going alone this time. "Right, then, Jin, let's go.

He asked Jin to go with him.

"Am I all right?"

"Yes. You're the only one who hasn't met Lord Rhodes yet. ...... Cu, I'm sorry."

Cu Fenet showed Raigh one eye.

"It's okay. ...... Jin, go ahead. I'm looking forward to seeing your results.

And with that, Jin and Raig left the lab with the skeleton of the golem's forearm.

It is already dark outside, but bonfires are lit in various places, and the path is barely visible.

"This way!"

Raig leads Jin in a direction slightly away from the research building.

There, against the starry sky, a huge black tower rises.

It is a circular tower with a base diameter of about 10 meters and a height of more than 50 meters.

"Is there a man here named Rhodes?"

Raihg nodded to Jin, who looked doubtful, with a slightly sad smile on his face.

"Yes. ...... how can I say it,...... this tower is Lord Rhodoth's home and all he can walk around."

Jin wanted to say, "Isn't that called house arrest?

As he had imagined, there were two soldiers standing guard at the entrance to the tower.

"Thank you."

Raig pulled out a piece of leather paper from his pocket that looked like a permit and showed it to the two men.

"Let's go."

Inside the tower there is a spiral staircase that goes up to about 20 meters above the ground.

At the top of the stairs was a small landing, which was also occupied by two soldiers.

Again, we passed through without difficulty by showing our permit.

Inside the door, the atmosphere had changed drastically, and the space seemed to be habitable.

Another flight of ...... stairs, this time up one floor, led to a door.

"This will be Lord Rhodes' ...... home."

Raig told Jin and knocked on the door.

The door opens after about 30 seconds.

"Oh, Raig," he said.

A man in his mid-twenties, about the same age as Hitoshi, shows his face. He had silver hair and light blue eyes. Jin felt a nostalgic feeling.

"It's been a long time. What's your question?　...... Well, there's a newcomer. Well, come in.

He was invited into what appeared to be a living room with a sofa and a table.

Please make yourself at home.

Then an automaton arrived, carrying a tray with enough hot water for three people.

(......!)

Jin did not make a sound, but was surprised to see the automaton for the first time when he came here.

The model is a girl. She had silver hair and light blue eyes, and was about the same size as Reiko. Jin remembered his beloved daughter fondly.

"I'm not sure if it's suitable for my palate," he said.

But the sencha was quite tasty. The nostalgic taste made Jin feel relaxed.

"Oh, it's delicious, isn't it?"

Rhodes' face broke into a smile when Jin commented on the taste.

"Oh, you seem to know what it tastes like. I'm glad to hear you say that because I like this tea too. Do you want another ......?"

"Yes, thank you."

Jin answered, and the automaton poured tea from the teapot in his hand.

Rhodes took a sip of the tea himself, and then spoke to Raig.

"Well, Mr. Raig, why don't you introduce me to your newcomer?

After he had made himself comfortable, Raig was flustered.

"Oh, I'm sorry!　I thought I had already introduced you!"

Raig apologizes and introduces Jin again, saying that he misunderstood because Jin was drinking the tea so deliciously and even refilling it.

"Well, this is Jin, who has been assigned to our lab today.

"Nice to meet you, sir.

"Oh, so you're Jin-kun. ...... Jin?　......

What is it?

Jin asked if the name "Jin" meant anything to him,

"No, it's nothing."

Jin replied, "No, it's nothing.