July 2, 3475 of the continental calendar.

Weissberg Ernst von Shawlo, Emperor of the Shawlo Empire, known as Ernst I, has his first son, Vinfried Shawlo.

In the year 3480 of the continental calendar, Winfried Shawlo is five years old.

* * * *

"Five years old or ......"

July 2, 3480.

In the laboratory on Horai Island, Jin is thinking about something.

"Are you thinking about the celebration of <> in your world?"

"Oh, Elsa. Oh, Elsa. ...... I guess it's a toy."

"Yeah, I think that's a good idea."

"Okay."

Jin had an idea and holed himself up in his workshop.

He stayed in his workshop for an hour or so.

Then he came out carrying a long, thin package.

"Elsa, Reiko, we're going to Miyagi!"

"Yes, dear."

Yes, father.

The three of them headed for the Palace of the Shoro Empire via the house of Reuthert.

As an honorary nobleman of the Shoro Empire and <> as well as <>, Jin could request an audience with the Emperor without the need for an appointment.

"Oh, Lord Nido, my lady. Welcome, Sir Leco."

Ernst I, now 31 years old, welcomed Nido and the others.

"Your Majesty, I made this for your son Fleet to celebrate his 5th birthday."

With these words, he handed them a package.

Fleet, by the way, is Vinfried's nickname.

"Oh, I'm so happy to see a handmade gift from the Magecraft Meister.

The emperor received the gift in a good mood.

"I will let Fleet open it. I'm almost finished with my official work, will you wait for me?

Yes, of course.

Ernst I laughed, "Once my official duties are over, I will no longer have to deal with the formalities of private life, if not .......

* * * *

"Thank you, Uncle Jin!"

Jin and his family were invited to the emperor's family residence, the , in the Palace of the Emperor.

There Ernst I gave the package that Jin had given him to his eldest son Winfried.

"May I open it?"

"Of course you can."

"Yes, of course." "Wow."

He unwrapped the ribbon, peeled off the wrapping paper and .......

"Wow, a dagger!

A dagger made by Jin was revealed.

The size of the dagger is small, as it is made to fit Winfried's hand.

It is about 20 cm long, with a 6 cm long handle.

The overall color is white, but the scabbard is studded with small seven-colored gems, and the pommel is decorated with clear crystals.

"This is ......."

"Huh?"

When the dagger is removed from its scabbard, the blade is revealed.

It is made of a translucent material ...... foamed with >, which is soft but not fragile.

It is safe because it is soft and cannot be cut.

"Let the magic flow through it."

"Let the magic flow?"

Winfried has a talent for magic and has been learning magic since he was four years old.

Jin and Erza even spent half a month teaching him the basics of engineering magic and healing magic, respectively.

Therefore, Vinfried is a master at channeling magic power.

"Yay!　...... wow ......!"

"Oh!"

As Vinfried channeled the magic power, the translucent resin blade glowed with a golden light.

It was a soft light. It was bright, but not dazzling.

"Cool!"

Vinfried raises his dagger high in the air with great joy.

Jin watched him with narrowed eyes, thinking that boys are always happy to see this kind of thing.

"Sir Nido, what is this?"

Ernst I asked, watching in amazement as his excited son played around with the shiny dagger.

"Well, it glows when the magic of the emperor's house is channeled through it. So, well, it's a dagger only for His Highness.

Of course, His Majesty and the Grand Emperor can also make it glow, Jin added.

"Fuumu ......"

Emperor Ernst I looked thoughtful.

* * * *

The dagger became the treasure of Winfried's life, and was passed down from generation to generation, to his son and to his son's son.

And then, one day.

Long after the death of Jin.

The Shoro Imperial family was facing a crisis.

It was the question of a successor.

The emperor had two wives, an empress and a queen. Unlike in modern Japan, the <> is the full wife and the <> is the second wife.

The Empress had a girl and the Queen had a boy.

If all went well, the boy born by the queen would become the crown prince.

However, a black rumor was circulating in the Palace.

It was that the boy born to the queen was not the son of the emperor.

It was just a rumor, but as they say, <>.

The boy looked like the queen, but not like the emperor.

There is no such thing as a DNA test in this world.

The only way to know for sure was to check ...... if the boy resembled his parents.

"This dagger is said to glow when the magic of the emperor's house is channeled through it. Let's see if we can make it glow."

The creator Jin has been dead for more than 100 years, and no one knows that it was originally made as a toy.

The only thing that remained was the legend that only those of imperial blood could make it glow.

And.

"...... no good."

The boy born to the queen, the whirlwind woman, could not make the dagger shine.

On the other hand, the Empress's child, a girl, was able to make the Dagger shine.

Therefore, the Empress's son became the Empress and the lineage of the Emperor's family was preserved.

After this event, the dagger became the greatest treasure of the emperor's family.

The Dagger is a treasure of the emperor's family.

Another 70 years passed, and once again the question of succession arose.

"If you can make this dagger shine, it will prove that you have the blood of the emperor's family.

"...... is ready."

"Oh, you are the blood of the emperor!"

It happened.

The emperor's family was saved from a crisis by the dagger, and the precious dagger was put away in the back of the treasure room.

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

And the months passed by again. .......

The Dagger's true significance, or even what it can do, has long since been lost due to the passing of a time of peace.

I give you this dagger. I give you this Dagger as proof that he who bears it is my son.

Your Majesty, I'm in awe of such a thing. ......

It's all right. It's a ceremonial sword that's rarely used anyway."

And like that, he was becoming <>. .......

* * * *

Once again, the true origin of the Dagger was revealed by Jin, and at the same time, it was to be kept as a treasure of the imperial family, with the proviso that it be preserved.