I Who Is a Loner, Using Cheats Adapts to the Dungeon


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I who have no friends was transported to the weird place with my classmates.

God who suddenly appeared in front of us said, “You all must complete the Dungeon!”

Protagonist who was given a cheat starts his adaptation to the dungeon

Associated Names
One entry per line
Bocchi na Ore wa Cheat o Tsukatte Dungeon ni Tekiou suru
Bocchi na Ore wa Cheat wo Tsukatte Dungeon ni Tekiou suru
I, a Loner, Use Cheats to Adapts to the Dungeon
Related Series
Blessing from the Goddess and Transfer to Another World! ~No Thanks, I Don’t Need a Special Ability~ (1)
Isekai Shoukan Makikomu Ijousha (1)
Legend (1)
Tsuki ga Michibiku Isekai Douchuu (1)
Acquiring Talent in a Dungeon (1)
Dimensional Sovereign (1)
Recommendation Lists
  1. My Favs
  2. isekai world
  3. Level System (Korean/Chinese/Japanese)

Latest Release

Date Group Release
05/04/16 NovelsJapan c28
05/01/16 NovelsJapan c27
04/29/16 NovelsJapan c26
04/28/16 NovelsJapan c25
04/27/16 NovelsJapan c24
04/26/16 NovelsJapan c23
04/25/16 NovelsJapan c22
04/25/16 NovelsJapan c21
04/24/16 NovelsJapan c20
04/23/16 NovelsJapan c19
04/23/16 NovelsJapan c18
04/23/16 NovelsJapan c17
04/22/16 NovelsJapan c16
04/21/16 NovelsJapan c15
04/19/16 NovelsJapan c14
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19 Reviews sorted by

lpfreek rated it
April 22, 2016
Status: --
I have no idea how this is so highly rated. The chapters are short, the characters are one dimensional and superficial, there is no description of the environment, the plot has been done too many times with nothing unique to make this story stand out and the MC is pretty much OP from the start. If you enjoy "MC gets transported to another world" stories, this might be something you read to kill time but its not worth much more than that.
15 Likes · Like Permalink | Report
OneEyedLich rated it
April 16, 2016
Status: c28
I’m at chapter 28

Very interesting so far !

MC isn’t s*upid nor arrogant. He’s a calm guy who’s used to be alone because he appear terrifying to the others. He’s not bullied, he just stays alone. When sh*t happens, he stays composed.

... more>>

When the tutorial begins and the Fairy is summoned, she’s scared like hell from him xD But she warms up immediately. I liked it how he called the god to save that loli Fairy. That’s how you raise a flag with a loli fairy. He even obtained a title [Fairy’s friend] which grants him more XP

There's time after where he has to kill his former classmates (some are a**holes), and he do it ! He doesn't hesitate, but he's not heartless either. After the killing, he simply takes a full day of rest to be emotionally firm again.

14 Likes · Like Permalink | Report
bushwhacker2k rated it
July 8, 2017
Status: c29
Premise is acceptable: protagonist and his entire class get teleported to a dungeon-like place and most of them are split up. They all have skills, but the protagonist has cheat skills.

It could have worked, but the human relations were totally nonsensical. Everyone he came across was either evil, ret*rded or guaranteed to die. It doesn't help that, despite the fact that he had ample opportunity to help others he never bothered.

There's no background personality to explain the course of actions the protagonist takes, he just acts out.

Also from what I've... more>> heard this was dropped by the original author as of chapter 29.

Don't bother, there's nothing of value here. <<less
9 Likes · Like Permalink | Report
Hydropoop rated it
April 18, 2016
Status: --
So so. Quite a few chapters are really short, and the story feels very amateurish.

Story is quite predictable as well.
9 Likes · Like Permalink | Report
Silver Snake
Ghostap rated it
March 23, 2017
Status: c29
Started off great with a misunderstood MC who did what he could to conquer the dungeon.

It is revealed fairly early on that anyone who was transported gets the skills of another transported if you kill them. You know that the plot will probably be centered on the inner struggles of party members suspicions and what not. Instead of actually how to defeat the dungeon, great subverting of expectations and what not. But the MC still killed without any real reason or need. The MC's reasoning was "You tried to kill me so it's only fair that I kill you right?" but that's just a selfish and petty reason. Since they were never really a threat to him since he can always tell when someone it trying to lie to him and he has by far been stronger than any of his opponents so far throughout his dungeon dive. And sure if he kills them he gets their special skill but he doesn't exactly need them since his other special skill lets him steal the special skill of any enemy he slays not just his fellow otherworlders.

In summary he kills those who would either already die on their own or who were never of any threat to him. Sure you could argue that those he let's live could trick/kill his other classmates and start to become a actual threat to him later on. Or that a classmate he spares could paint him the villain and encourage his classmates to gang up on him. But the MC is just that much stronger that they would likely still be of no threat to him. In the end I'm glad this was put on hiatus.
6 Likes · Like Permalink | Report
Fuxy rated it
April 20, 2017
Status: --
This is the kind of MC I would prefer in a fantasy world where the entire world is cruel and although I completely agree with the crimes being punished death for everything is a bit much. The infatuated idiot should have been spared in my opinion. His suffering would have been punishment enough. All in all the MC is quite good too bad the story wasn't as good. P. S. This is discontinued not completed so don't read if you don't like a bit of a cliff hanger.
4 Likes · Like Permalink | Report
January 28, 2018
Status: c21
I am liking it so far.. And I can somewhat relate to the MC. I too was shunned in School for being "Scary" I waqs bigger than everyone, and they were affraid I would bully them.

However I can't seem to get past C21. I keep getting a 404, and sent to godaddy. Com.
3 Likes · Like Permalink | Report
November 30, 2018
Status: c19
Super amauture feeling. No description of anything other than color and species. And "stone floor" or "bright light"

Is the author really young? That would explain so much about this. The main character states he won't reveal his ability to anyone and wants to lay low. Then immediately blabs it off to some guy.

It's just poorly written. I enjoy the concept and am a degenerate isekai geek who will binge a bunch of "potato chip" novels.

... more>> This novel is a half eaten stale bag of unsalted great value potato chips.

The god character states it very well

“... you, you were a lolicon?”

The god looked really disgusted
——- Annoying

“Stop saying such a s*upid things. You know it don’t you”

“... Yes yes, I understand. You are so boring.”

Character has no personality only thing they kept me going was my own imagination of a stick figure with a crazy ugly looking sour looking lemon face

Let this novel stew for a few more months and get some better details and editing in the chapters

Maybe actually have a single semblance of a story being written?

Just terrible all around <<less
2 Likes · Like Permalink | Report
Seraphic rated it
November 14, 2017
Status: c29
Recommended: Nah.

This novel was pretty fun, for what it was. Not a very deep plot or realistic characters, but at least it was enjoyable. I'd even go so far as to say it was more entertaining than something like To Deprive a Deprived Person. Shame it was discontinued, though. Probably not worth picking up, given how little of it there is.
2 Likes · Like Permalink | Report
The one who read
The one who read rated it
June 19, 2016
Status: c28
The start is frustratingly short but over time the chapter gets longer. The MC doesn't afraid to kill which while a bit illogical but so refreshing.
2 Likes · Like Permalink | Report
Asf rated it
April 28, 2016
Status: --
Starts out with short chapters and generic reincarnation settings but it gets better when the story progress. The settings made you feel like you are playing an old school dungeon crawler RPG when you read. While this has a Japanese MC, you would expect a crybaby MC that is bent on harem building right? But no. This guy is pretty calm and cold with his decision if the situation needs it so.

There would be many characters that he will meet inside of the dungeon. Mostly are his separated classmate. No... more>> character he met are truly safe in the dungeon, as there will eventually be victims, either by monsters, or by humans.

All in all, its a pretty fun read. I recommend anyone to give it a try.

@ch 26 <<less
2 Likes · Like Permalink | Report
UnknownSaint171 rated it
June 2, 2020
Status: c29
Despite Writing being bad. It’s at least better than a tr*sh-Isekai.

Every chapter is extremely short.
Keep in mind: Nothing is explained or fleshed out well.

A bad rough draft. At least it’s simplicity is entertaining.

It really needs polishing and a proper series.

There’s so much more it can be. It really makes my writer instincts wanting to fill the gap.


I don’t think Yamada should have died. He looked like he was going to repent and just needed someone to punch him in the face. There were many ways MC could had aided Tanaka


I really enjoyed this story. All in all, the characters were good.
1 Likes · Like Permalink | Report
keklel rated it
July 20, 2016
Status: c28
Everything so far is pretty much standard. MC seems to act mostly rationally. However there are some points that are still shounen-like, such as talking before finishing off his enemies, which gives them time to use their skills, though he probably didn't expect them to have any skills that could harm him, it's still being careless. His cheat power is pretty useful (ability steal, lie detection and extra XP I think?) though it's not useful for combat (he got tricked by the scammer guy for example). I mean if he... more>> kills a lot of monsters and humans with combat powers then he gets powerful, but neither steal nor lie detection are actually helpful in direct combat. Powers are ok, however with lack of mention of mana consumption why doesn't MC just use all his powers all the time? Also, how do skills level up? Also, what happens if a lower level Sleep Attack gets used on a higher level monster? What affects the effectiveness of skills? None of this is explained. As mentioned the short chapters are annoying. It reads like a manga rather than a novel. Maybe 5-10 chapters in this is equivalent to one chapter in a standard webnovel. A lot of chapters are just "today I hunted some orcs and levelled up, time to move to the next zone". Kind of like Re:Monster except not as tedious. Might as well wait for it to be finished before reading. Also it seems like the author hasn't written any new chapters for over 2 months so maybe it's been discontinued. <<less
1 Likes · Like Permalink | Report
Grynthax rated it
October 15, 2020
Status: c28
Well, I'm a bit disappointed that this got cut short because it honestly wasn't bad. Wasn't great, any sort of ethical code that has been instilled for multiple years would make people naturally opposed to mu*dering people and I doubt that placing them in this sort of format where they have to survive does not encourage mu*der. Rather the opposite, it should encourage cooperation so I'm rather confused as to why the author gravitated towards every single person being either useless or a psychopath. And no I'm not exaggerating. If... more>> you want details read the spoiler below. Despite this very very large issue I gave it an average score because it's unrealistic to expect some sort of ethical logic from a story such as this. The story itself was interesting and we had the makings of a good story had it not been cut short.


The first classmate that he meets is just a mu*derer for no reason other than that it gives him more XP? Furthermore, the next group of people that he meets, one of them is completely useless because of their gifts, one of them has the makings of a good character if he didn't die, one of them was a coward, and the last one was plotting against the rest for no clear reason?? Furthermore, the protagonist himself has very little issues with killing people and the author can hide behind the ethical reasoning by using self defense. Don't get me wrong, I'm not opposed to it but if you wanna get into the specifics, it doesn't make sense for high school students to be mu*derers.


TL:DR - A good story cut short and devalued because every human being is a mu*derer for some reason. <<less
0 Likes · Like Permalink | Report
aetonazniel rated it
February 25, 2019
Status: v1c28
I like the personality of the MC since he is realistic and does not shy away from what needed to be done to survive and eliminate the evil in front of him.

But sadly there is no world building.. What world.. Its only a dungeon and nothing else. Also no hint on the reason for being transported just a whimsical god? Also no more updates so probably dropped and forgotten
0 Likes · Like Permalink | Report
PortableAxe rated it
May 28, 2018
Status: c16
I would rate this higher if it wasnt for the translation. There are several grammar errors and typos. This slightly irks me, but it may not bother others. Just know, if you are the kind of person who is a grammar police, I would not read this.

Other than that, the story is interesting (to me at least). The premise is quite generic - main character gets transported into another world with cheat abilities. However, I think the execution makes up for this. The main character is a loner, and he... more>> is not the typical coward or hypocrite who says - I want to save everyone! And (to my relief) no signs of a harem! All in all, the story is not bad. If you are the type who doesn't mind an unrealistically overpowered main character who has a hard heart, then in my opinion, this is worth a read. <<less
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The8Sinz rated it
January 22, 2017
Status: c14
A pretty decent manga i'll would rate it 4.5/5 but I cant so 5 is ok

The MC is just to overpowered with the typical steal abiltiy but the only difference is that the boss/rare monster are also OP af so they have a equal standing to the MC. I'm the type of weeb that like excapist novel so of course i'll rate it a 4.5/5 but to the other weeb's out there this novels is a meh-ish type of novel there not really that large content to dive into like... more>> other novels. So ill recomend it if you have nothing else to read

(Sorry if I make grammer mistake, english the 2/3rd language I learned) <<less
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Guymaioh rated it
August 14, 2016
Status: c29
More of a 3.5 at the moment, but I will mark it up to 4.

This story is pretty good :) simple at the moment, but it's picking up slowly. I think the author is finding his feet, however I do think it has great potential.

I agree with the other reviews in that the first 4 chapters are not amazing, and I myself believe, maybe aside from the prologue, from 2-3 the chapters should have been condensed into 1. From chapter 5 the story really picks up. It's an easy read... more>> and not too complicated, but it's a nice alternative to some of the more gruesome stories of survival / transported to another world novels. <<less
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denvinbo rated it
August 1, 2016
Status: --
This is the kind of Protagonist I always wanted to see (really Nidome no yuusha's vibe). Straightened, ruthless, calm, smart.
0 Likes · Like Permalink | Report
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