Original subtitles

And in order to guarantee its success, we'll need our earrings of science.

Huh? What do we need earrings for?

Are you trying to make Kohaku extra cute or something?

But the cutie selection is almost over already, right?

That's why I need to whip it up at top speed.

This coil of copper wire might seem decorative, but it's actually a full-fledged inductor.

On the ear hook, I've attached a chunk of the Rochelle salt we got from our wine.

It's the same material we used for the speakers.

Wait, are you saying...

This is a tool to aid their infiltration?

Bingo.

It's a super handy spy gadget that will let us issue orders from a distance.

In other words, an earpiece!

I can't see any obvious electronics or circuitry anywhere.

Is it this thing in the middle that receives the radio signals?

Yeah.

But it's so tiny!

Is it some sort of integrated circuit or something?

Nah, it's just a rock, man.

For real?!

Galena, pyrite, copper... Just about anything will work.

Hell, you could even use a coin.

Really? But then, where's the battery?

Don't need one. You can leave it on forever and it'll never die.

For freakin' real?!

I don't get it at all!

How can a gadget work without a battery?!

It works the same way as those old crystal radios.

It's not gonna be very loud, but that actually works perfectly for a covert earpiece.

Yay!

They all got chosen!

Attagirl, Ginro-chan.

There's no time for idle chit-chat, guys.

No time for a dress rehearsal, either.

We're testing this live.

Can you hear me, Kohaku-chan?

If I'm coming in clear...

Strike a cute pose.

A cute pose?

Cute?

Cute?

Cute...

Cute?!

Cute!

It worked!

The earpiece is a great success!

I dunno if that qualifies as a cute pose, but whatever.

What?! You think she didn't hear you, then?

Nah, she definitely heard me.

I won't let you get away with humiliating me like this, Gen.

My revenge will be swift and thorough.

So now we can communicate with Kohaku using the earpiece,

but how are we actually gonna get the weapon?

Well, to start, we know the one holding it is that warrior, Kirisame.

She's the one who fought Kohaku-chan, right? She seemed ridiculously strong.

Yeah.

If they just try to walk up and take the weapon from her,

it's ten billion percent not gonna work.

Fortunately for us, there's one special occasion

where Kirisame will let go of her precious petrification beam, entirely of her own volition.

A special occasion, huh? Surely you don't mean when she throws it?

Yep! That's our moment to strike!

So, now that we've infiltrated the enemy's base, what's our plan of attack?

It's simple, really. We just walk right in and nab the weapon!

Kirisame has it, doesn't she?

Let's strike while she's asleep tonight!

Tonight?! That's way too soon!

Why do you always have to be so bull-headed, Kohaku-chan?!

Can't say I don't feel the same way, though.

After all, who would want to be a concubine for some master they've never even met?

But first, we need to do some recon.

Kirisame is part of the master's personal guard.

We don't know when she's on duty, nor where she sleeps.

We'll need time to gather info once we're inside.

We've got an incoming message from Senku.

What?!

How can you can hear him through an earring?!

We don't really get it, either.

Science is kinda weird.

I'm sure you've already realized this,

but the Kingdom of Science is once again splitting into two teams:

the science team and the spy team.

So listen up, spy team. Here's your mission.

Gather as much intel as you can, and once the other top dogs leave her alone,

do whatever it takes to lure Kirisame away...

and get her to throw the weapon!

Roger that.

We'll get it done.

Ah, right. I guess they can't hear me, can they?

Still, even having one-way communication gives us a huge advantage.

I wish we could've brought the cell phone, but it's just too hard to hide.

Once you do your part, the science team will swoop in and snag the weapon mid-air!

Er, Senku-chan, this plan is great and all...

But how exactly are we gonna grab it mid-air?

We've got no choice but to make something capable of fighting in the air.

That's right.

Right here, on this primitive island, we're crafting the king of 3D maneuvering: the drone!

The drone?!

The air is the sole domain of science!

Drones rock back and forth to maintain balance, right?

Don't you need to, like, program in an altitude control system using a microcontroller?

Don't worry.

I've already thought about all that.

In reality, the motor is the most important part.

Oh, were you able to get it out?

Yeah, I think so.

Take a look.

Check it out! What a perfectly shaped bracket!

You're gonna turn that little clippy thing into a motor?

Well, if I tried to make the motor myself, it would take all day.

Fortunately, our design is gonna be super simple.

So you guys better help out, too.

First, we wrap some copper wire around an iron rod, then shoot electricity through it.

That gives us an electromagnet.

Oh, yeah, even I know that one.

I think we did an experiment like this in elementary school.

Next, we'll also turn the bracket from earlier into a magnet.

And if we line the two magnets up just right, can you guess what's gonna happen?

It's making a whirring noise and starting to spin!

Once the inner magnet spins halfway around,

we reverse the electrical current going through it, flipping its polarity, and keeping it spinning.

Wait a second...

I think I know what's coming next.

That's right! We need an absolute boatload of super-powerful electromagnets!

And even more for all the propellers, too!

Which means we have to wrap these wires up hundreds—hell, maybe thousands of times!

There it is!

The Kingdom of Science's age-old tradition: never-ending, back-breaking labor!

So this is the enemy's stronghold.

The master's home turf.

Didja see that?!

That was the great Oarashi's miracle punch!

Nothing on this island could stand against my miracle power!

The broken statue lying before you

is what remains of a foolish man who tried to sneak in and steal his daughter back from the master.

Villains like him must be despo... depos... uh...

Disposed of?

Damn straight!

Don't forget, this is what happens to those who try to escape!

Disposed of...

Disposed of, huh?

Well, one thing's clear.

The security's pretty tight around here.

That's why sneaking in was our only choice.

We'll have to lay low until we find an opportunity to scout around.

There's a reason I prefer striking hard and fast.

We're not gonna find a better opportunity than right now, while they're distracted by the newcomers.

Amaryllis, I need you to buy me fifteen seconds.

Can you do it?

Uh, what? What's going on?

Okay, I've got you covered.

H-How impressive!

I've never seen such burly, powerful arms before.

Do you mind if I give them a touch?

Well now, it's nice to finally meet a woman with good taste.

I can tell you appreciate the miraculosity of my miracle muscles.

Very well, you may bask in their glory.

She's so cute!

No wonder she got selected to join the harem!

You're both incredible as well.

Can I come and get a closer look?

M-My father wasn't around for long and I didn't have any brothers,

so I get flustered when I'm surrounded by big, strong men.

Ka-thunk!

Looks like I was right after all.

And it's all thanks to my keen eyesight

and the knowledge I've gained from the Kingdom of Science.

What's all this commotion?

Kirisame?

Crap! She got here quick!

I think I bought at least fifteen seconds, but...

Thank goodness you made it back in time!

Where were you, Kohaku-chan?

Confirming a hunch.

And I'm glad I did, because I found the key to securing our victory—a key of science.

But how can we covertly tell Senku and the others about what we've found?

Our communication device is one-way.

How are we supposed to get a message to them?

Couldn't you just shout really loudly and hope they hear, like you did back on the shore?

We can't risk blowing our cover like that after everything it took to sneak in.

You there!

Feeling chatty, are we?!

Were you even listening to me?!

It's my job to train you ladies, got it?!

There's only a week until you join the harem for real!

That's all the time they gave me to drill

proper posture and manners into you sloven girls, so prepare for hell!

This is the test rig for our motor.

If the motor's functioning properly, the battery should send the car blasting off.

Power on!

So freakin' speedy!

An RC car, huh?

This might be useful on its own, perhaps for communication?

A carrier rat, if you will.

Hey, can you hear me, Kohaku?

Keep an eye out for a fun little present headed your way soon.

The rat of science is en route.

It's a huge rat!

To us modern folk, it's pretty obvious that it's an RC car, but not to the islanders.

Well, I don't know. Between the slapdash construction and the wild, jerky movements,

I'd say it's actually pretty convincing, even to a modern person.

Hey, you! No stepping out of line!

Yes, you! Don't act like you can't hear me!

But madam, there was a big rat,

and we were so very scared.

Kohaku-chan had to muster up all her courage to catch it.

Please don't blame her.

Fine, but I'm watching you!

It's like they can just flip a switch!

Girls are scary, man!

And Amaryllis-chan is super scary!

If you run into any trouble, just dispatch the carrier rat with an S.O.S. letter attached.

...is what he said.

What's a letter?

I haven't the faintest clue,

but I guess we're supposed to use this rat of science as a distress signal of sorts.

Letter?

Huh?

What's going on?

What, you're attending science class now, Kinro?

Straight-laced and serious as ever, I see.

Not quite.

What're those squiggly pictures for?

They're called "characters".

Senku and all the other modern people can read them, apparently.

By arranging them into words, you can write letters,

which allow you to communicate with others without meeting face-to-face.

This is an important skill that we villagers should learn, too.

How fascinating.

I shall strive to learn this art as well.

You'll study with me, then?

Inquisitive as always, Ginro.

So if we write one of these "letter" things and send it back using the rat,

we can get a message to Senku, right?

We can tell him about that key to victory you mentioned, Kohaku-chan.

What, is something wrong?

Well, you see, that's not actually possible.

Because the last part of your story was pure fiction, wasn't it, Ginro?

Writing? Who needs that crap?

Have fun studying, loser!

Ginro! Why are you always like this, man?!

Why didn't I just study?!

Don't abandon hope just yet, Ginro!

That story of yours gave me a brilliant idea!

O-O-Oh, man!

They sent back an S.O.S. message so quickly!

There's something stuck inside of the RC rat.

Wh-What is this?

A pictograph?

It almost looks like a brain teaser or something.

Well, this was probably the best they could do.

None of them know how to write, after all.

That means it's up to us to crack the code!

It might help to put ourselves into the sender's headspace!

First up...

What the hell is this supposed to be?

An ice pop?

"Hyoga took an ice pop and melted it with an engine."

Why would that be the message?!

How the hell should I know, man?!

You do it, then, mentalist!

A surface-level analysis of the pictures isn't gonna be enough.

You have to think about things at a deeper psychological level.

Think about what's going through someone's mind as they're drawing pictographs, Senku-chan.

They're using pictures to represent spoken words they've heard.

Meaning they'd want to make it as simple as possible, right?

Now, tell me, would you call this drawing particularly simple?

Particularly cryptic, more like it.

Exactly.

Which means they couldn't represent the message in a simple way, see?

Some of the words they wanted to convey must be relatively unfamiliar to them.

In other words...

Science terms.

So you're saying this isn't an ice pop?

It's some sort of science item?

We've cleared plastic!

Plastic?!

So the spy team wants us to send them plastic?!

Nah, what possible use would they have for plastic?

Perhaps it's related to the sounds in the words.

Okay, time to focus.

I'll build on what Senku-chan started.

Next up is the blood splatter.

It's clearly intentional, and not just a smudge.

Perhaps it represents a wound? Or a related feeling, like "pain" or "numbness"?

Next comes Hyoga-chan, and he was a real thorn in our side, so perhaps "obstacle"?

It could also be something related to his character, like "dishonest", "sly", or "scary".

But Ginro-chan is too squeamish to cut his own finger,

so we have to assume Kohaku-chan wrote this letter.

In that case, I think we can rule "scary" out.

Finally, what looks like an engine.

But in actuality, it's more likely to be something that benefitted the villagers directly.

Which means it must be an electric furnace.

There are plenty of possibilities here: "fireplace", "boiler", "brazier", or "heater".

Something like that, probably.

You're seriously powering through this thing, man.

It's almost like he's reading her mind or something.

All right.

With that narrowed down list of words,

we've only got a few hundred possible combinations to work through.

We can brute force this.

Now that we've got the words, it's just a fun little game of teasing out the message within!

It's within the roots of the master's tree.

The key of science, you mean?

I spotted a strange, round object down there that must be man-made.

A mysterious machine, strengthened by science to withstand the test of time.

That's right.

It's the all-important treasure box we've been searching for,

left behind by Senku's father and his friends.

The Soyuz space capsule!

"Platinum is here."

The spy team actually found it!

The ultimate treasure Byakuya left behind for us: platinum!

Does that mean what I think it means?

Luckily for us, we only need a tiny piece.

And once we get it, we'll have a catalyst to create more nitric acid than we'll ever need.

Yeah.

It means we can revive...

the entire Kingdom of Science!