Slowly the time passed, and finally, in two minutes, it was time for the war to begin.

"This is it!"

Jin D. and Marikka D. are at the .

Jin and Marikka themselves are in the dining hall of Horai Island, looking at the with .

This is a picture taken by the old man using a <. The quality of the image is much better than the other one.

"I guess this one has a better quality.

"Of course, it's better than the processed one."

No matter how superior the technology of the originator, it is extremely difficult to greatly surpass the image quality of the original.

Just as the image quality of 8mm film is no match for 35mm film.

"Speaking of which, do you know what kind of submarine they are going to use?

Marcia asked.

"If we're going to win, if we're going to do everything we can except break the rules, you've done the research, haven't you?"

"Of course I have. Only the old man who will be piloting the orca knows.

Jin and the other observers are not informed about it.

"Just this once, I'll watch from the same position as the originator.

"If that's the way it is, I understand."

Thirty seconds to go.

Almost there.

It's a little strange to be a complete bystander, isn't it?

Brother Jin might be right.

I'll just leave you to it, old man.

Ten more seconds.

9......8......7......6......5......4......3......2......1.......

"0!"

The on Horai Island shows a submarine from the <>.

"...... round."

"......It's round."

It looked almost spherical.

"That's probably two of the previous submarines attached to each other, belly to belly."

"It sure looks that way. It is not a perfect sphere, but slightly distorted."

I guess you could say it's like a dorayaki.

The original submarine was not a perfect hemisphere, so it is not a perfect sphere when you put them together.

"...... I believe someone predicted that, didn't they?"

"Marikka, Marikka. <

"Mr. Zion, you didn't have to tell me. ......"

"That's right, Marikka."

The cafeteria of the institute is bustling with activity.

But underwater, the battle was about to begin.

After confirming their intention to start the battle over the radio, the battle is about to begin.

<

The weakest mana bomb torpedo is fired. This is also a guided torpedo.

"Whoa!"

"It's surprisingly agile."

"It's almost spherical, so I guess it can move at the same speed in all directions."

< seemed to be more maneuverable than expected, and was able to dodge torpedoes traveling at 60 km/h in the water.

However, the guided torpedo continued to track the spherical submarine.

Thirty seconds after the torpedo was fired, a mana bomb hit the submarine.

"But it's unharmed ......?"

It looks like adamantite armor.

The mana bomb torpedo fired this time can destroy a rock the size of a watermelon at best.

That's why the adamantite armor won't budge a muscle.

"Of course."

Everyone watching felt that the spherical submarine's armor was indeed quite formidable.

"Oh, they're shooting at us, too!"

Two drill torpedoes were fired.

They appeared to be guided torpedoes, and were tracking the orca. The speed of the torpedoes was about 50 kilometers per hour.

<

"No, Mr. Murakami. It is better to destroy it without swinging away.

Lewis advised.

"It's dangerous to have so many of them in the battle zone. They could be waiting somewhere, pretending to be shaken off, and then attack again when we are not on our guard."

Lewis pointed out the possibility of launching two shots now, but many more in the future, and then make them stand by at the bottom of the sea, pretending that they missed or were swept away, and when we are caught off guard, they may attack us all at once at .......

With the current defense capability of the , it would probably be 99.99% safe, but tactically, it would be a defeat.

So, the old man fired the same mana bomb torpedo as before.

This torpedo was originally designed to be used in such a situation. It plays a major role as an ATT (anti-torpedo torpedo), so to speak.

The mana bomb torpedo guided by the old man successfully destroyed the approaching drill torpedo.

Even if the drill bit at the tip of the torpedo is made of adamantite and is hard to break, it is useless if the main body of the torpedo is broken.

"Oh, that's great, old man!"

"But they probably have more torpedoes than we do.

"I suppose so, considering their size."

If it comes down to a battle of strength, the killer whales will be at a disadvantage.

However, they can send supplies through warp gates and transporters as a subterfuge, so if they wanted to, they would have no reason to worry about losing.

Then, < decided to attack.

First, the <. Fire at low power.

<

In air, the <> can reach an initial speed of up to Mach 80, but this is a version for underwater.

However, due to the reduced power and water resistance, the initial speed is about 20 meters per second.

The bullet is made of steel.

It bounced off the spherical submarine's armor.

"It's still very sturdy, isn't it?"

<

If you want to destroy it, you can, but this is just a mock battle.

Since the former and are such companions, it is not desirable to win so thoroughly.

<

"Yes, do it."

<<<< engineering magic warhead torpedo>,fire! >>

Two new weapons for use against submarines from the East Base in Gigosald, <>, have been fired.

They are traveling at a speed of about 200 kilometers per hour.

Since the previous torpedoes and underwater magic cannons (magi-cannons) did not work, the spherical submarine did not take any aggressive evasive maneuvers.

This is another tactic of the old man.

By repeating the attack which had little effect until then, he made the submarine let its guard down.

Not exactly to catch them off guard, but to make them more efficient by eliminating the waste of evasion.

And as intended, the <> did not try to evade the <>.

Instead, it fired 20 drill torpedoes, which the <> had just intercepted with <> torpedoes.

The two and the 20 drill torpedoes were aimed precisely at their respective targets. .......