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Novels· Easy Isekai Desert Island Life · Day Thirteen (Part Four) · Ch. 231
Day Thirteen (Part Four) · Chapter 231 · 1,783 words · ~8 min

Chapter 231: The Next Mission

2025-11-20
web-novel
mature
Qwen3.8-27B-UD-IQ3_S-MTP
Last updated:2026-10-08
9 Minutes
1665 Words

The dreamlike moment was cut short when we were teleported to the bonus area.

I’ve tried before, but no matter how hard I try to stay awake, it’s impossible; I’m forcibly pulled into the dream world.

Still riding the high from my encounter with Chiyu, I managed to switch gears and focus on the choices in the bonus area.

“Ch-Chiyu-chan, how was…?”

Mako asked, her face bright red.

“Mm. I could feel Sou-kun’s thing hit the back wall and spread inside me. And his excitement was intense.” “Oh my. So that’s how it is.”

Shion placed both hands over her mouth, exclaiming in surprise.

“Uu… it feels a bit too lewd for comfort, though… I mean, making children is important, but… if magic allows for contraception, then things would be no different from before, right?”

“If it’s safe and Souke will be happy, I’ll do it.”

“Chiyu-sama, if you don’t mind, could you please cast that same spell on me as well…”

Fuhou was thinking hard with her eyes darting around, while Serina and Roa seemed eager to comply.

Feeling it wasn’t right for me to listen in, I quietly stepped away.

Well then, let’s refocus and get to the bonus area.

Since there wasn’t anything we urgently needed, we each picked whatever we wanted to take home.

I grabbed a transistor radio. Shinhou took a textbook, Lumina-sensei grabbed another, Shi-on got an onion, and Roa selected some carrot seeds.

Chiyu, Yobiko, Junme, Miyone, and Seline also seemed to choose whatever items they desired.

We decided not to ask about anything outside of what was necessary for the party, respecting everyone’s privacy.

It would be embarrassing if everyone found out, but surely each of us had personal necessities or desires.

Once the choices were made, the white classroom was announced.

“Day thirteen has concluded.”

“A question for you all. Between the mines and the ice caverns, which do we need for our survival going forward?”

“The layout of the mines / The layout of the ice caverns”

“The mines, then!”

The mine had been an option back on day two as well.

At that time, votes had gone to the water source, so it wasn’t added then, but here it is again among the choices.

When it came to fish, they were divided into river fish and sea fish, but in the case of mines, there doesn’t seem to be such a specific distinction.

This is good news for us.

I had been planning to use the “Right of Dual Choice,” the quest reward for defeating the “Yokuba Tree Treant,” to place one on the island, but it looks like we can get our hands on a mine without even needing to do that.

We can use the “Right of Dual Choice” at some other point in the future. “Hm. Finally, unlimited access to minerals?”

“What kind of minerals can be mined?”

“In the mines, it is possible to mine any mineral that exists on Earth.”

“Hey, if we were to mine gold here, do you think I could put it in Sousuke’s Inventory and take it back to Japan with me?”

Terina spoke to me, but the answer came from the mysterious blackboard.

‘I cannot provide an answer.’

Doesn’t it simply say ‘I can’t’?

Bringing precious metals home isn’t my primary goal, but if that’s the end result, then sure, there are dreams to dream.

For now, I decided not to think about it.

“So, an ‘ice cave’—is that like a cave made of ice?”

“If this island’s mysterious power keeps that location perpetually cold, it sounds like it could serve as a natural refrigerator.”

Rumi-san reacted to Mekiyo’s comment.

I don’t have a refrigerator, but even if I did, it would be the exception rather than the rule.

Considering food preservation and such, it certainly would be convenient.

“Would the Master’s abilities come into play in the mines?”

“Oh! Right. They’ve been making all sorts of things using wood and stone for now, but if we can get our hands on minerals, they’ll probably be able to make even more stuff, right?”

Hearing Loha say that, Miyo nodded.

“Ah! Kobutsu is used in cosmetics, isn’t it?”

Uruna said as if she had just remembered.

It seems she remembered what I had said before.

“Right, that sounds good. The ice cave is nice, but I think the mine is still better.”

My companions nodded in agreement.

Before long, ten votes were cast for the mine, and seeing this, it seemed the other participants followed suit and voted for the mine as well.

“A majority has been reached. Voting is now closed.”

“The ‘Mine’ environment will be introduced starting from Day Fourteen.”

“Next, we will announce the players designated for their Vanishing Day.”

Yes. With the return of the three Survivors, two additional elements would be added to this island.

The “Vanishing Day,” when a designated player’s ability becomes unusable, and the “Designated Quest,” which the same player must undertake.

『Participants: “Kudo Sozou,” “Kanashiko Natsuko,” “Yumekai Serina”』

”…For real?”

“Aah… I’m so scared…”

“I have a bad feeling about this…”

Keiko’s eyes welled up with tears, while Yumeka frowned.

Just for one day, the abilities of me, Yumeka, and Keiko would become unusable.

It would be extremely inconvenient and sad to think of the summoned beasts falling into sleep, but given our current combat strength and resources, we should be able to manage without much difficulty.

However, that only holds true if there are no quests.

“Next, I will announce the designated quests.”

“Quest: ‘Mine Exploration’

Participants: ‘Kudo Sōsuke, Tanbi Rumeimamori, Genchū Kyūjūko, Kamison Sei-shu’

Clear Conditions: ‘Discover five types of minerals in a mine infested with special monsters and bring them out.’

• Clear Reward: “Grant ‘Right of Return’ to all quest participants”

• Deadline: “Until the start of Day 15”

・Penalty: “Designation of a ten-day disappearance period for all quest participants.”

“・Quest: ‘Bird and Beast Damage’”

・Participants: “Everyone”

Clear Conditions: ‘Slay a total of one hundred applicable monsters generated within the island.’

Reward for Clearing: ‘“The Right of Dual Decision”.’

・Penalty: “Extinction of the race if bitten even once by the applicable monster.”

I see. So this is how it’s going to play out, huh?

If we had the [Craft Ability], mining in the mine would be a breeze.

However, if our abilities are sealed and we have to stay vigilant against monsters, it will be tough.

Damage caused by birds and beasts is also a considerable nuisance.

Right now, using Nagahata’s Plant Magic, they are cultivating seeds brought back from the bonus area.

However, on the fourteenth day, when the barrier’s benefits cannot be received, those fields are left completely exposed.

If bird monsters chew through them and cause the quest to fail, those seeds will vanish from the desert island.

In other words, if a seed obtained from the bonus area is lost, it must be acquired from the bonus area again.

Simply protecting the base is not enough.

Moreover, since the seeds originally found on the desert island are also included in this category, there is a significant risk that the variety of fruits and vegetables will drastically decrease.

These bird beasts need to be defeated with urgency.

”…Will special monsters continue to appear on the island from tomorrow onward?”

“Special monsters appear only on the day they are assigned, regardless of whether the quest is successful or not.

However, when a different quest occurs, it is possible for previously appeared monsters to be deployed again.”

For now, that means the special monsters appearing in the mine and around the island will only last until tomorrow.

Thanks to Fukanomi, an important fact has been confirmed.

“About that rule, ‘even if just one bite is taken from a seed’—does it apply to animals too?”

“What? If it does, that’s going to be a huge problem!”

For Mune, whose Spirit Beast had fallen asleep, this was indeed a matter of life and death.

However, Seirina’s question didn’t stop there.

If being bitten by even one person meant the species “Human” would be wiped out, the difficulty would be too high.

Of course, they intended to clear the quest, but they wanted to accurately grasp the penalty for failure.

“It applies only to plants.”

Voices of relief drifted from everyone.

“Will you please explain about the special monsters?”

Professor Luminas raised her hand to ask.

“I cannot answer that.”

Unlike the standard monster placement, there seemed to be no explanation regarding the special monsters.

So, the quest included everything up to that point.

It was certainly a tough quest, but the reward was massive.

「If we achieve the ‘Mine Exploration’ goal, will the ‘Benefits’ granted by Lord Luminus be applied to us as well?»

Roar had asked a good question.

As the additional transmigrator, Professor Luminus was entitled to perks that doubled his party’s ‘Survival Bonus’ and ‘Point Acquisition’ from monster defeats, along with an increase in the number of ‘Return Rights’ available to him.

“If an Additional Transfer qualifies for event participation, all benefits will apply.”

That’s good news.

Clearing the mine quest meant we would secure five ‘Return Rights’ at once under current circumstances.

Completing the Bird and Beast challenge would allow us to place one of the two options we had previously foregone onto this island.

I already possessed one ‘Right to Choose Between Two’, but an extra wasn’t a burden; in fact, it was a boon.

“What gets sealed during the Disappearance Day is only what the designated individual brought into the desert island, correct? In my case, anything already placed shouldn’t vanish.

And even if Chiyu were designated, I can assume it wouldn’t retroactively negate the wounds she healed in the past, right?” 『That is exactly correct.』

Meaning the strength and stamina she built up through training her ‘Elementary Healing’ would remain intact.

It was regrettable that abilities couldn’t be used, but the weapons I had created were stored inside the mansion.

It wouldn’t be entirely useless.

“Starting Day Fourteen.”

Tomorrow is finally the release date for Volume 3 of the book edition!

I also posted the illustrations in the activity report, so please feel free to check them out!

Chapter 3 of the comic version has also been released on Niconico Manga!

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Article title:Chapter 231: The Next Mission
Article author:SiVisPacem
Release time:2025-11-20
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