The Hidden Dungeon Only I Can Enter


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Noir, third son of a “beggar noble,” lost his job and was at a loss, but fortune struck just as he was contemplating becoming an adventurer.

Hidden Dungeons that no one knows how to enter. Legendary places full of extremely rare magical beasts, magic tools for power beyond measure and items that would be considered a rarity all over the world.
To such a dungeon the entrance was opened.

“Without telling anyone about this place I’ll secretly become the strongest.”

This world is harsh to nobles of poverty.
Without authority or honor, if I could at least acquire power――

Associated Names
One entry per line
Ore dake Ireru Kakushi Dungeon ~Kossori Kitaete Sekai Saikyou~
The Hidden Dungeon Only I Can Enter ~Secretly Becoming World Strongest~
俺だけ入れる隠しダンジョン 〜こっそり鍛えて世界最強〜
Related Series
Living in this World with Cut & Paste (1)
A Different World Scenery View From the Tower (1)
Boundary Labyrinth and the Foreign Magician (1)
Dungeons Appeared in Real Life (1)
The World Is Overflowing with Monster, I’m Taking a Liking to This Life (1)
Swordmaster Healer (1)
Recommendation Lists
  1. The List that I don't bored after more that 100 LN
  2. Favorit
  3. Awesome “Protaganist” <3
  4. A good read (basically what i think is worth readi...
  5. Adapted to manga/webtoon

Latest Release

Date Group Release
06/17/20 Light Novels Translations c142
06/13/20 Light Novels Translations c141
06/05/20 Light Novels Translations c140
06/01/20 Light Novels Translations c139
05/30/20 Light Novels Translations c138
05/23/20 Light Novels Translations c137
05/17/20 Light Novels Translations c136
05/10/20 Light Novels Translations c135
04/26/20 Light Novels Translations c134
04/12/20 Light Novels Translations c133
04/05/20 Light Novels Translations c132
03/29/20 Light Novels Translations c131 part2
03/22/20 Light Novels Translations c131 part1
03/15/20 Light Novels Translations c130
03/08/20 Light Novels Translations c129.5
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12 Reviews sorted by

Horoscope rated it
March 27, 2017
Status: c3
*Sigh of slight disappointment*

This story has a long way to go to meet my standards

There are way too many things this story is doing wrong.
Some light spoilers: (read if you want to know what your getting into)
- Typical cultivation premise. Nothing new on the table.
- Thick MC. Really, really thick. His head is alright, it's just around that ONE GIRL he becomes a complete Neanderthal.
- Everything suddenly going the MC's way at convenient times. If this was done more gradually it would have been... more>> less noticeable. Having the MC stumble upon a virtual gold mine (the dungeon) right when the his family is in a monetary crisis was sloppy. The rewards should have come out AFTER he completed a trial of some kind. I can only see the family being infinitely successful from here on out.
- Very forced romance. Some could say it was done in a way that is clever and 'plot stimulating', but the way it is done is just a bit too fast. And it is because of this that the MC needs to be so damn thick in the head. At least his thickness serves some purpose (not bad).
- The name of the dungeon he finds is LITTERALLY NAMED "The Hidden Dungeon Only I Can Enter". Who the hell names a dungeon that?! Obviously whoever made the dungeon failed from keeping other people out by this point!!!
-Don't even get me started on the OP as hell powers.
-The very first monster he finds is a slime that spits disease. That's fine... but its body tastes delicious (MC eats it). If it was an animal type monster, it would totally make sense... but seriously, there is no room to BS my way out of that one. You could wave your hands and say it was MAGIC disease, but get this: The slime is catalogued as 'weakest'. Magic then becomes basically impossible for it. Tada, we have a nice, big, fat, plot hole right off the top of the story. Your not impressing me author. It could have been acid it spat or something, but you went and chose disease because it is most associated with the color yellow.

Despite all these things, I don't believe it is game over for this story. One star for now, and more in the future if the author manages to plug up some of the plot hole, or at least stop making them so fast.

Translator is doing a great job. Three chapters and only one slight spelling mistake. <<less
57 Likes · Like Permalink | Report
scribbledoutname rated it
April 10, 2017
Status: c8
So far the story has been really enjoyable and genuinely funny. I'm really fond of the MC, his family, and Emma... Emma for multiple reasons :P I'm not usually a fan of ecchi elements but I like the way the author uses it because none of it derails or slows down the plot. If you're anything like me then this is a nice mix of growth and enjoyable interactions... defo worth reading :)
15 Likes · Like Permalink | Report
Kasukage rated it
July 5, 2017
Status: c14
I think this book is good but not for those who don't have any Patience. On the start, they have obvious misgivings bit then they get better once you get to chapter 4-5. Although his skills may seem bad at first, it plays a huge advantage just like his nobility. His family can be like that only because of their low status. Anyway, this is good for those with patience.
10 Likes · Like Permalink | Report
SethArk2136 rated it
June 26, 2018
Status: c80
At the start it is certainly an enjoyable fun read. However there are plot holes, the MC is thick at times, the worldbuilding is poor, but it's not intended to be serious, considering the MC can gain the strength of a dragon by going to a brothel. The LP system is literally Deus Ex Machina, and the author forgets how much he has, and is inconsistent. Honestly it's a least a fun read if you don't mind the s*upidity, but later on if you read the syosetu novels in MTL... more>> as I did, it gets extremely annoying.


The MC can buy skills with LP, or Life points which basically he gets whenever the author thinks he needs some, and is horribly inconsistent. It says he gets them for being intimate with the opposite sex, being satisfied or eating a good meal, doing perverse things or eating exotic foods. However, there is absolutely no consistency in how many points he gets. He's also extremely wasteful, never buys basic strengthen skills yet complains about getting stronger, the author says a storage skill can't do something without upgrading it, yet instead of actually upgrading it when they come to needing to a carry a dragon, they apparently don't need to upgrade. If you are reading it out of any interest in how he utilises his so called cheats, don't since he only uses it to weaken enemies, and never attempts to strengthen himself. Since I enjoy cultivation novels, with cheats and such I thought it would be interesting since he didn't seem to immediately get OP skills, however it's actually because it's a slice of life novel.


The title is completely misleading, and the strength of other people in the world is poorly explained. Even as a slice of life harem, it's cliché and not great. I'm sure some people might enjoy it, but it's certainly wasn't for me and ended as a major disappointment. It also feels like the author massively changed the tone later on due to complaints for some reason, which may be why disliked it. I genuinely feel frustration after reading it, so I don't recommend it. <<less
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rhianirory rated it
August 3, 2019
Status: c10
as someone else mentioned, I think this is a novel aimed more at tweens or younger teenagers with tons of wish fulfillment and lots of super specialness for the MC. Though the MC says he wants to keep things low key and get strong in secret he begins showing off as soon as he gets back the first time. He's also incredibly thick and nieve, which is why I think (hope) the story is aimed at kids. I would have enjoyed this story at 13 even if it is a... more>> harem. As an adult reading it, I find the MC extremely frustrating and his behavior senseless and contradictory. Recommended for those younger kids or for people who love idiot MC/ isekei build for their MC (despite not transferring from another world, his behavior is almost identical to the isekei harem novel MC). Lots of contradictions and plot holes already and I'm so irritated by chapter ten that I am dropping the story. <<less
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ClassyPotato rated it
July 22, 2017
Status: c22
The story is kinder basic if I was being honest from shameless, secretive MC to the childhood promise. The thing that really lets me down is the fact that the MC has a creation skill actually means nothing, sure he did become stronger but still for someone​ who has a creation skill is still weak. The MC also has no understanding of danger when it comes to boasting or trust. On a whole for someone​who has been suffering as beggar noble has no concept of low-key. Really an utter disappointment
7 Likes · Like Permalink | Report
July 20, 2019
Status: c26
Harem virgin bait novel. The MC is very child like (no surprise its a novel for young teens/tweens) and the author is obviously pandering to the chuunibyou virgin crowd. Its a lighthearted read that really has no drama or overly mature themes besides the pubescent and sometimes incestuous and pedo like innuendos and physical contact but even they are mostly not very serious. That's not to say you cant try and find deeper meaning to what's going on just that you are not supposed to.

If you are younger give it... more>> a shot you will probably have a fun time.

If you are older and want to read it just know you will have to make some concessions with logic and reasoning. This is defiantly not for you but if you can let the weird and illogical parts slide you may enjoy it as well. Individual mileage will vary. As an older reader myself its just not interesting enough for me but that doesn't mean I think its bad. <<less
5 Likes · Like Permalink | Report
muhammodalamin rated it
December 20, 2019
Status: --
Guess I shouldn't have expected too much from it. After all, this is just a small art of a noob writer. Im sorry for having such high expectation. MC is very DUMB. Many forced plots. MC has many secret skills that he gets from his master. But he goes to some random church old man and asks them to appraise his skills that cannot be anything but godly. Are you f*cking kidding me? WHat if they expose your secret. MC tries to sell some of his things that he got... more>> from defeating a monster. But due to the monster being so Rare he cannot sell them as a commotion would take place. And he wouldn't be able to keep a low profile. But for gods sake he can wear disguise. Why not wear disguise. Or create a skill that can disguise oneself. He then brags and trusts the receptionist and tells her all of his skills. For gods sake why the f*ck do you show your skills to stranger? Just give them a fake skill set. How dumb and naive the MC is. <<less
4 Likes · Like Permalink | Report
DumCreator rated it
August 16, 2018
Status: c24
If I can give this novel a 4.5, I will but you can only choose whole numbers. So I rounded to the nearest whole number. It a good story to read if you want some laughs and light read. But I don’t recommended it to people who wants a story that is done right on many points. This story is just for people who wants to chill and see most of the things probably go the MC’s way. Also, this is probably the author’s first couple of tries to write... more>> a web novel series, so please don’t be too harsh on the rating. You can see it if you read a little more carefully. Just don’t be a douche and say that it is extremely lacking. Also, this will be updated as new chapter is released. Rating not actually solidified. <<less
4 Likes · Like Permalink | Report
storybookknight rated it
May 12, 2018
Status: c14
A perfectly adequate story for killing time and brain cells when you have nothing better to do.

Look, not all Light Novels are going to be great works of literature. This story is *definitely* one of the ones that aren't, but for all that it's still a lighthearted, fun, unserious story. This is the kind of story that sees absolutely nothing wrong with giving the main character skills that are recharged by kissing - but at the same time doesn't take itself seriously enough to turn itself into a R-18 porn... more>> quest. It's s*upid, mildly perverted fun in the way that many Japanese LNs are - there's not much to elevate it from the pack, but it's not egregiously bad either. <<less
3 Likes · Like Permalink | Report
Deadmilkmen rated it
February 19, 2020
Status: c50
Can't believe I made it to chapter 50. Even for teenagers this is terrible. The MC is beyond dense in every way possible. This feels like it was written by a preteen. He gets the ability to edit/create skills and grant them to others. It costs LP to do so. He constantly uses his LP in the worst way imaginable instead of simply strengthening himself. Sure. Spend thousands of LP giving your opponents debuffs specific to that opponent and situation, instead of simply spending a few hundred on yourself to... more>> get some awesome skills. Makes perfect sense. The few skills he's bought so far have been fairly cheap too. An example, he could spend 1000lp to increase the range of his lightning spell to 10 meters, he needs to use lightning because it's an earth dragons weakness. Instead of zapping the sleeping dragon and running, he hides, about ten meters away, and spends 1000 lp to charge a piece of meat with lightning to use as bait. A one time use item. Almost every fight is like that. Typical Japanese beta MC. Surrounding a 16 year old with girls that wanna screw his brains out and the MC being too dense/beta to actually do it? I'd rather just not have to read the harem crap at all, it's way way too unrealistic. No matter what world/setting it is. No teenage boy is that nice/dense. <<less
2 Likes · Like Permalink | Report
sdb rated it
April 4, 2019
Status: --
i like the level headed MC, not overly edgy.. And not to forget to humble, can do lewd things w/o overly excessive.. Coming here from manga.. And people read and give your honest opinion based on the genre because not everything had to be arifureta or mushoku tensei.. Or any gungho over the top chineese novel
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