Thanks to the faint blue light emitted by the bioluminescent fungi, the cavern wasn’t completely dark.
I lowered my smartphone and slowly took in the wondrous sight of nature.
Like moonlight filtering through water, a hazy, cool light shimmered across the floor.
"Wow."
A gasp of admiration escaped me before I knew it.
There was a pool of water in the middle of the cavern.
It was strangely clear for what seemed to be nothing more than a stagnant pool. Vito and I carefully approached the edge.
At first, I thought I could see the bottom, but beneath the surface, at a certain depth, something like a transparent membrane was wavering.
What was that?
"Can only I see that?"
"No. I can see it, too. Something looks out of place."
There was a boundary layer in the water, like the heat haze rising off asphalt on a hot day.
"Should we go in?"
"Whoa!"
I hurriedly stopped Vito as she started taking off her clothes to get ready to swim.
"Noona, noona. Let me check it out."
I focused on the flow of mana.
The upper layer was relatively safe freshwater. Its composition might be different, but it felt similar to the water I made with Water Creation.
It was probably groundwater seeping through cracks in the cave rocks.
"The water up top is relatively safe to drink."
"Impressive."
"And…"
Beyond the lens-like haze was seawater.
I see.
The seawater and freshwater weren’t mixing with each other; they were forming a boundary layer.
Was this what they called a halocline?
This wasn’t magic. It was a wonder of nature.
A pool where seawater and freshwater coexisted without mixing.
That was what created this cave’s unique ecosystem.
I checked to see if there were any fish.
Detection Magic had its limits, so I couldn’t see too far, but……
"There are lots of shrimp living here."
"Shrimp?"
"Yes. It seems like a good environment for crustaceans to grow."
It was a cave, but it had the unusual structure of letting seawater flow in.
The shrimp seemed to have grown plump from eating plankton and organic matter that had built up along the way.
"Shrimp, huh…"
Vito tilted her head, as if she wasn’t sure about them.
"If we’re going to catch them, we should do it along the edge, away from where we collect drinking water."
If we made a commotion in there, the seawater and freshwater would definitely mix physically.
Then all that drinkable water would be ruined.
It wouldn’t matter to our group, since we had an unlimited supply of water, but it was useful advice if Vito planned to stay here.
"Hmm, I like it. It’s cool down here, too. Couldn’t we use it like a natural refrigerator?"
"It’s cooler than outside, but it definitely won’t work like a refrigerator."
Even in a cool underground cave, raw meat would surely spoil before long if we left it lying around.
'Preservation' had always been a major problem for humanity.
Refrigerators and refrigerated distribution networks.
Until the fantastic combination known as the cold chain came along.
Before that, people did everything they could to keep food edible: drying it, salting it, smoking it, fermenting it……
What a fucking hassle.
"Haa, storage is the biggest problem here. Even the food we worked so hard to find spoils before long."
"I know what you mean."
Food ingredients didn’t last long.
This problem constantly pushed our survival to the brink. It made it difficult to prepare for tomorrow.
That was when it happened.
The presence of a Glyph I’d sensed earlier
was coming from beneath this halocline.
I focused on my sense of mana.
Beneath the halocline, I could see a pattern only I could understand.
The meaning of that pattern was────
『Preservation』
It was.
The Glyph of Preservation!!
I would’ve preferred the Glyph of Fire, but I was always glad to acquire a new Glyph.
I’d have to try it to learn more, but one effect of Preservation immediately came to mind.
The ability to preserve ingredients in their original state!
We’d just been talking about storage. Talk about perfect timing.
If I used the Glyph of Preservation, I might be able to recreate modern refrigeration with my own hands.
"Thank you, Woojin. I found a good hideout thanks to you. If you want to use this storage room, come by anytime."
Shouldn’t I be the one thanking you?
"I found something good, too, thanks to you, noona."
Today’s hunt had been a win-win for both of us.
Vito had gained a safe base with a freshwater source, and I’d acquired a Glyph.
I was already getting excited at the thought of exploring the mysteries of a new magic.
After exploring the cave, we came back outside to find that the sun was already setting.
It’d be completely dark by the time I got back.
"I should get going now."
I had a feeling I’d better leave soon.
"I’ll go with you."
"It’ll be dangerous for you to head back, too, noona. I’ll go by myself."
Vito tilted her head, seemingly unable to understand what I meant.
"The forest is dangerous for anyone at night. Come on."
Since she was so determined, I nodded, too.
I didn’t say it, but honestly, I was a little scared to go back alone.
At night, the jungle had a completely different atmosphere from the daytime.
"Or you could wait until daylight."
"You know the others are starving because they have no food…"
"Right, I forgot."
I had to hurry and bring them the meat.
"I’ll give it to you now. Here."
Vito took the bundle of raw meat she’d promised from her bag.
"Thank you."
I put the bundle of meat in my bag and was just about to leave.
Pat, pat.
The sound of rain hitting the leaves grew louder in an instant.
Rumble, rumble, rumble!!
"Gah!"
Suddenly, a torrent of water came pouring down.
It was rain.
And not just ordinary modern rain—it was a tropical downpour on a whole other level.
It felt as if a hole had opened in the sky and a waterfall was pouring through it.
The rain didn’t fall in streaks so much as a solid wall.
"Over here!"
At Vito’s shout, I hurried back into the cave.
Damn, wow……
This wasn’t the rain I knew!
This wasn’t the kind of rain you could handle with something like a modern umbrella.
I’d been out there for only a few seconds, and I was soaked from head to toe.
Rooooar!!!
The rain pounded the ground with a roar like a waterfall.
The jungle scenery blurred white in an instant.
"Good thing it didn’t start after we left, Woojin."
"That’s true, but─"
I was worried about the others.
We’d only just started building, so our camp didn’t have any roofing yet.
If this downpour was hitting them, they might be in serious trouble by now.
"I have to go."
"Are you crazy?"
Vito grabbed my arm.
"Going out in this rain would be suicide."
"But the others must be having a hard time in the rain, too."
"Think about it again. They can hide somewhere and make it through the day, but you’ll be in danger while you’re traveling."
Couldn’t I use magic?
If I made an umbrella with the Glyph of Wind, or formed a protective barrier with the Glyph of Water……
Thinking that, I stepped outside again.
"Woojin!"
Vito called after me, but I kept walking.
I thought of Assistant Manager Kang, Manager Han, and Luka.
They might be having an awful time, soaked to the skin.
"Assistant Manager—argh!"
As soon as I descended the flat rock and returned to the jungle, mud clung to my ankles.
Some of the soil had turned into a swamp, soaking the ground enough for my feet to sink into it.
'W-wait, what the fuck───.'
The whole path was completely fucked!
This wasn’t a problem I could solve just by blocking the rain falling on my head.
'Damn it. What do I do?'
This…… might be more of a challenge than I thought.
For a moment, I remembered the truth about this island that I’d forgotten.
In the face of nature, we were utterly helpless.
'Assistant Manager, Manager, Luka….'
I had to make a choice here.
Should I push ahead, even if I had to struggle through the mud, or turn back and wait until the rain stopped?
「If you’re left alone on a rainy day, great misfortune will befall you. You might even lose your life」
……
No way…
Was I really going to believe the words of some clueless college-student shaman?
But now that things had come to this, her words kept nagging at the back of my mind.
Rumble……
'What was that sound?'
As I caught my breath beneath the dome-shaped umbrella I’d made with the Glyph of Wind, I felt a strange vibration.
"……"

Something was lurking beyond the white veil of the downpour.
At first, I thought it was one of the jungle trees, but the thick, black shape moved like a limb.
It was horrifying.
It felt similar to what I’d sensed when I encountered that thing outside the sea.
It wasn’t a boar, a lizard, or any kind of beast.
But when had something like that suddenly appeared?
If it had been inside the island all along, how had we never noticed it?
While countless thoughts flashed through my mind, instinct had already set my legs in motion.
Let’s go back.
Hmm, fate can’t be helped.
I, Kim Woojin, am not a man who defies fate.
I’ll go with the flow.
I trudged back up the slope.
Going out in this downpour really was crazy.
Why leave a base on high ground where the water could drain away on its own?
"Noona. Vito noona…… cough…"
Vito greeted me with a smile as I returned, soaked like a drowned rat.
"You made the right choice, Woojin."
"Haa."
I couldn’t believe how cozy it was inside the cave…
Having a roof over your head really was wonderful…
Noona had already made a place to lie down on the cave’s dry floor and changed her clothes.
"You’re not the kind of man who acts recklessly. ……Right?"

Outside, the rain was lashing down, but inside the cave it was relatively quiet and had a soothing calm to it.
Vito’s voice sounded close, as if she were whispering in my ear.
Wasn’t this the sort of setting in which our distant ancestors, and their ancestors before them, had tried to reproduce?
Something engraved in my genes was already making me feel aroused.
Alone with a woman in a cave───
A woman seducing a man in the safety of their shelter.
It felt like we’d both climbed into a time machine and been left behind in this primitive world.
"Your forearms are so tense. What are you holding back so hard for? Ah, is it that civilized way of thinking?"
"If you just pounce on a woman because you want to, that makes you an animal, not a person, doesn’t it?"
"Hmm."
Vito nodded as if she saw my point.
But I hadn’t expected the follow-up.
"What if the woman wants it?"
"……"
"Woojin."
Vito pronounced my name exactly the way I’d taught her.
Just watching her lips move was enough to make my cock feel like it was going to burst.
"…You still have the condoms, right…?"
"Yes."
Of course.
I tried to play it cool so I wouldn’t seem pathetic if I answered too cheerfully.
Vito already treated me like a boy as it was.
"Pfft. What’s with that expression, pretending to be a sexy man? That’s funny."
"Come on, you were pretending to be seductive, too. Even making your voice all sultry."
I was just going along with the mood, and that’s what you say?
"Ahahaha!!"
Vito sat there, kicking her feet as she cackled.
"That doesn’t suit you, Woojin. You’ve got such a baby-faced younger-brother look. Do women have to sweetly take the lead when you have sex in Korea?"
She sounded like she was asking if I even knew how to have sex.
It got under my skin, hearing that from Vito, who was a virgin herself.
It was time for me to step up for the sake of Korean men everywhere.
As I took off my wet clothes and casually revealed my erect cock,
Vito’s eyes changed in an instant.
"Oh."
I’d establish dominance with my massive, hard cock.
"Well, that part of you isn’t childish at all."
Her gaze fixed on my plump, neatly exposed glans.
I pretended not to notice and spread my wet clothes near the campfire she’d lit.
"Hmm, what are you going to do now?"
Vito reclined at an angle, opening up her chest.

I slowly moved closer.
"It looks even bigger up close. You might kill me today, Woojin."
"I’m not going to kill you."
"Mmm. Hurry."
Vito urged me on in a breathy voice, as if she couldn’t wait any longer.
"Do whatever you want with me, Woojin."
I pulled Vitoria into a tight embrace.
I felt the softness of her large, brown breasts pressing and spreading against my body.
"Haa…. Mm…"
At last, I was holding a sexy Brazilian noona with enormous breasts.
Instinctively burying my face in her nape and kissing her, I felt Vitoria shudder and tremble.
She closed her eyes as if it felt good, breathing out in excitement.
"More."
Vitoria spoke as if she were asking me to indulge her.
"Do more, Woojin."
Right after that, our eyes met.
Vitoria’s red eyes looked up at me, glistening with moisture.
I kissed her plump lips and tangled my tongue with hers.
"Mmm. Haa…"
We started with a slow kiss.
I couldn’t resist fondling Vitoria’s large breasts, either.
She shuddered.
"Mmm…"
The others might be in serious trouble in the rain right now, but here I was…
"It’s okay, Woojin. Forget everything and let it all out on me. This is a reward for a fine male specimen."
Squeeze.
I grabbed Vito’s big brown tits as if I were trying to crush them in my hands.
"Haaang!"
I forgot everything and kissed Vitoria, our tongues entwined.
At the same time, I shamelessly fondled her breasts.
"Mmm. Ah. Slurp."
Noona was swept up in the teasing of her breasts, not knowing what to do with herself.
Her breasts were already so big and soft, and they changed shape freely in my hands.
I could hold them with both hands.
I gently tormented her nipples, then tugged at them like stretching cheese, teasing Vito’s breasts.
"Mmm!? You!"
She was briefly taken aback by the boldness of the baby-faced younger man she’d underestimated, but Vito soon pushed her breasts toward me, seeming to enjoy it.
Without even saying a word, Vitoria’s legs slowly opened.
I gripped her thighs, following the healthy, smooth brown skin.
Then I slid my hand inward, tracing the crease as I moved deeper.
I only had to feel the plump outline of her labia and gently rub her clit for Vito to arch her back.
She responded honestly to the pleasure, making no effort to hide how happy my fingers were making her.
If anything, it was an animalistic movement, as if she were pushing her pussy out to follow my hand.
"Woojin, você é gentil demais. O seu toque me deixou completamente molhada.
(Woojin, you’re so gentle. Your touch has made me completely wet.)"
"I’m going to take you from behind like a dog now."
Now I was the one breaking the sweet mood.
I gently rubbed Vito’s soaking-wet pussy as I gazed into her moist eyes.
"Oh~~. Mmm, mmmh. Você está dizendo que quer me pegar por trás?
(Are you saying you want to take me from behind?)"
"I’ve wanted to take you from behind since the start, noona."
"Como um bicho?(Like an animal?)"
"Yes, like an animal!"
"Meu Deus, Woojin.(My God, Woojin.)"
Vito seemed to like the aggressive side of the man she’d thought was gentle, and she gasped with unfocused eyes.
"When I turn around, you said you’d take me. Don’t go easy on me just because it’s my first time!"
Squelch, squelch, squelch, squelch.
"Oh, ooh…"
Vito twitched her thigh muscles and kicked her feet in pleasure as I lavishly teased her pussy.
Vito’s pussy was already thickly wet. Even as I stroked it with my fingers, when I pushed her clothes aside and lightly touched her, a string of moisture stretched between us.
"Turn around."
At the curt command, Vitoria glared at me as if in defiance, but then slowly turned around, as though accepting the bedroom pecking order, and raised her ample ass.