"Oh, that was fun!"

"That was fun, wasn't it?"

Hannah, who has returned from her undersea excursion, is smiling with satisfaction in the dining room of the <>. Martha is smiling next to her.

It is now 1:00 p.m.. They are having a late lunch.

"Now that we've covered most of our itinerary, I think it's time to go back.

Jin says as he eats his sandwich.

"Yes, today is the first week of our trip. ...... It's about time to go back," Martha said nodding her head.

Martha nodded and said.

"Thank you, Jin. I've enjoyed every minute of it."

"No, thank you.

"Thank you, Grandma!　It was a lot of fun traveling with you, Grandma!

Hannah thanked Jin as she finished her Citran juice.

"We still have a long way to go on the way home."

As Jin said this, a thought occurred to him.

"Shall we fly back?"

"What?"

"It would be no fun to go back the way we came, so I was thinking of flying home in the Conlon 3."

Is that all right?

Yes, of course.

He was concerned that he might get tired of looking at the sea all the time,

"Jin, can you fly?　By all means!"

Marcia was also interested in flying.

So, after the meal was over and they had enjoyed their tea.

"Father, <> has arrived.

Conlon 3, which had left Horai Island at Jin's request, was stopped on the deck of the <>.

<>.

"Well, you all know about this, don't you?"

Jin asked somewhat unsurely, pointing to <>.

"I guess I'm new here," Marcia said.

Marcia said.

It was true that she had used the warp gate, but she had never ridden on <>.

Although he is not here, his father, Rodrigo, was in the first airship that Jin built when Marcia was in distress.

"Whoa!　Wow!　We're really flying!"

Of all the members, Marcia is the only one who has never flown before. Even Martha had flown with Jin for a short time before, when he took a scenic flight in the village of Kaina.

Martha was calm enough not to make as much noise as Marcia did.

"The ocean is blue from above, isn't it!"

Marthia is sticking to the window.

"What's that?　Is that <>?

This is the same monster that attacked Marcia and the prototype catamaran earlier.

It is basically docile, but it has a habit of looking at floating objects as hostile.

"If it swims that way, I doubt it will affect land. ......"

Conlon 3 looks off at the 20-meter-long Bowall swimming leisurely below, and continues to fly north.

"Oh, that land ...... is the Elias Peninsula!"

Marcia's homeland comes into view, and it gets closer and closer.

"Ah, I see the island of Io!　Oh, there's Potrock! Potrock!"

She looks like a little girl with all the excitement in her life.

We were amazed that Marcia had such a side to her, but at the same time we were smiling.

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

<

"See you later, Onii-chan!"

"Jin, it was fun. Thank you!

After dropping off Hannah and Martha, takes to the sky again, heading for Horai Island.

This time, they go a little faster and arrive at Horai Island in a few minutes.

Once there, they went to the institute's cafeteria to drink Persian juice and celebrate their safe return.

"Congratulations on a successful trip".

Glasses were raised and everyone looked relieved as they drank the juice.

"Yeah, it was a lot of fun. Thank you, Jin!"

"No, thank you for taking me on this trip. I had a great time every day."

"...... Well, my dad will miss me, I have to go home."

Marcia passed through the warp gate and returned to Potlock.

"Thank you, Jin-dono, for everything.

"Jin-kun, it was a pleasure. Be good with the young mistress. See you later.

"Jin, it was a very fruitful trip. Thank you.

Toa, Stellina and Vivian also left with a few words.

"Well, we're going home too.

I'll have to write this up!"

Saki and Goose also left.

"Well then, Jin-sama, Erza, you two enjoy yourselves."

Even Meine said such words and left the laboratory.

The remaining members are Jin, Erza, Reiko, and Edgar.

"......"

"...... suddenly became quiet."

"Hmm."

The quietness after the merrymaking is somewhat lonely. Both Jin and Elsa were silent for a while. But...

"...... we have to do what we have to do."

Jin muttered a few words and stood up with a shake of his head as if to reset his thoughts.

"Brother Jin?"

"Erza take a good rest. I'm going to the workshop.

With these words, Jin walked out of the cafeteria. Reiko followed him.

"I'm going to prepare dinner.

Elsa whispered in a low voice and got up to go to the kitchen. Edgar followed her.

* * * * * *

"What was this material at ......?"

As a matter of fact, Jin was concerned about the mysterious object found on .

"Is it lead ore or ...... tungsten lead ore?"

<

"Then the cause of this weight must be ...... molecular compression?

Why such a substance was found in such a place is a mystery.

"I don't think we'll ever know," he said.

<

"Well, keep on going."

<