Ihoujin, Dungeon ni Moguru


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July, 1946. The existence of an alternate world was confirmed.

It was supposed to be a new world for mankind.

However, the enormous cost, the annihilation of the advance troops, and fierce public opposition led to the signing of a non-aggression treaty.

Mankind turned their eyes towards space.

Half a century later.

A certain company formed a team in order to explore the alternate world’s dungeon.

Five professionals and three artificial intelligences. And one reserve member.

With modern weapons and technology, the adventure was expected to be easy.

However, the ones who had arrived in the alternate world were a defective artificial intelligence and a non-professional.

Through trial and error, they lived, ate, and fought. And, they explored the dungeon.

Associated Names
One entry per line
Kotokunibito Dungeon ni Moguru
The Foreigner, Explores the Dungeon
Related Series
Gate – Jietai Kare no Chi nite, Kaku Tatakeri (1)
Kochugunshikan Boukensha ni Naru (1)
Recommendation Lists
  1. Fantasy / Isekai
  2. A light novel junky's fix
  3. Solo's Favorites
  4. Dungeons
  5. Favorit

Latest Release

Date Group Release
08/08/20 FoxTeller c46
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07/11/20 FoxTeller c39
07/07/20 FoxTeller c38
07/03/20 FoxTeller c37
06/29/20 FoxTeller c36
06/25/20 FoxTeller c35
06/21/20 FoxTeller c34
06/17/20 FoxTeller c33
06/13/20 FoxTeller c32 part2
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7 Reviews sorted by

New bosbarret rated it
August 1, 2020
Status: c36
Main character starts acting like a womanizer after having a wife

... more>>

[Due to some circumstances MC got a wife (Rana-elf princess) but he still lets other girls cling to him, literally in front of his wife, even though she hates it. His mental describes how good it feels and how he "doesn't have the courage to push the girls away". He keeps saying his marriage is a sham even though his wife actually treats him like a lover (Sitting on his thighs, letting him feed her, gosh he even rubbed her belly and kissed her). In my opinion, this novel got worse when new girls started appearing and MC became Rito

Note: The first girl who tried to seduce him is the beast girl Lanseal. Why don't I like her? She initially served a horny prince who kidnapped MC's future wife, she didn't outright do anything bad, but she didn't try to stop the prince either. She threatened MC and his wife to help stopping the war (Elf King wants to use the fact that Horny Prince tried to do bad things to Elf Princess Rana to start a war. After MC's wife asserting dominance on MC to stop Elf King from making things troublesome, Lanseal was like, omg MC you are my lover thanks so much for stopping the war, Right. In. Front. Of. His. Wife]

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berdanka rated it
January 19, 2020
Status: --
This novel is full of plotholes, like a slice of Swiss cheese. I can't recommend it to people with common sense. Means, if you're older than 10 and willing to give it a go, please reconsider.

The large list of plotholes:

... more>>

- Top brass hired some random guy (gamer) to fill their ranks despite the high cost of the isekai mission (looks like no one cares about the success, poor investors). And they've done it because his name was neat.

- They're also prepared a big remuneration for his sister in case if he dies (can't you just hire an orphan if you don't care about his training?).

- The briefing time was so short, MC failed to remember crucial facts about the other world.

- Isekai (in its true meaning) is a popular subject (according to the story), but MC was absolutely obvious about it except for some negligible points. This is despite the fact that MC is a gamer!

- MC was introduced to his squad a few minutes before the mission start (Nuff said). Squad's leader also refused to introduce everyone before passing through the portal (probability of the emergent situation right from the start? Nah).

- AK 47.

- Rifle in hands of an amateur with zero training and doubtable mental health.

----- end of the 1st chapter -----

The more you read the more glaring plotholes become. How MC handles storage of meds and equipment, how carefree he is, how naively he handles thugs, how lame his combat tactics (though maybe this one is not a plothole since he just a gamer, but even a gamer will try his best when he feels cornered) - everything bad.

The worst is, he was complaining about a short briefing but done nothing to gather the intel on site.


In short, this is a very typical JP novel with JP morals and JP lack of sense. <<less
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CarlecBen rated it
April 23, 2020
Status: c20
Underrated story, I would dare say that it is better than a ton on isekais out there. The protagonist isn't afraid to stand up for himself, he's not one of those naive idiots MCs and his personality is pretty likeable. The story has a mix of comedy and serious moments but isn't all over the place while keeping most things consistent. The side characters have a defined personality and they are not just there to fill space. The world-building it's not that great but it's not that bad either, pretty... more>> decent. The translation is pretty good and chapters are released every 4 days so you don't have to wait long to read more.

One of my recent favourites, definitely recommended. <<less
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AndyDarren rated it
April 2, 2020
Status: c16
Pretty good. The MC's personality is a mixed pot, you never know what's the real deal with this guy, he's pretty much a weirdo. The comedy is fairly subtle with little to no tsukomi humor and the serious moments are fairly immersive. Some of the characters aren't without their cliches and the MC even cops a couple of elf sisters right off the bat but at least so far, they've had enough personality to get them by. Hopefully the side-characters go through more development in the future, but other than... more>> that, I haven't got many complaints. All in all, a decent start with the first volume, hope to see it continue. 4.5/5 <<less
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Izmil rated it
April 2, 2020
Status: c16
Are you tired of some wimpy MC that dont even fight back when they get make fun with? Well dont compare it to the MC here because he will really beat the hell out of them like the thugs he made into meatball or how he deals with his stolen goods in some merchant company then blows their storage with his goods with bombs or some other more. Well I made it 5star because for me this novel have refreshing taste to give for me.

*sorry for the bad english*
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June 11, 2020
Status: c32 part1
The story starts well considering the focus was on the MC and how the interactions between him and the other characters (especially the AI) were amusing, However, things got boring quickly as he stuck with his former party members (e.g. Irvin) for his adventure and he turned out to be the typical dense jp protagonist lacking in personality and wisdom. The adventures were plain and there were no more comedic scenes. It was unfortunately quite a disappointment.
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anarcheopteryx rated it
May 2, 2020
Status: c15
I really liked the sci-fi/fantasy setting and the main character actually has a personality, unlike many other isekai protags. But the harem stuff really starts taking over the story and it is so tedious. Every woman who meets the protag falls in love with him instantly and is ready to die for him. Gag. Why couldn't we just stick to the plot? Ah well.
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