The Undetectable Strongest Job: Rule Breaker

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By some ill fortune, Hikaru died in a traffic accident. He was in heaven standing in line, waiting to be judged, when he took an unexpected request to transfer his soul to a person in another world. He received an ability called Soul Board which he could use to allocate points to Skills to make himself more powerful.

But there was a catch…

「I want you to take revenge on someone for me within an hour. If you don’t, I’ll destroy your soul.」

To pull off the task assigned to him, he poured all his available points to the Stealth skill tree.

This is a story of a boy who specialized in Stealth. With his skill trees as weapons, he would demonstrate his unrivaled strength in another world.

Associated Names
One entry per line
Sacchi Sarenai Rule Breaker
察知されない最強職《ルール・ブレイカー》
Related Series
N/A
Recommendations
Beauty of Thebes (3)
I Don’t Want to Be Loved (3)
Other World Assassin Life of a Man who was a Shut-in (2)
An S Rank Adventurer Me Along With Those Girls Who Are Slaves, Form A Slaves Only Harem Guild (1)
The Dungeon Seeker (1)
Death March kara Hajimaru Isekai Kyusoukyoku (WN) (1)
Recommendation Lists
  1. Decent
  2. Isekai
  3. was reading
  4. Reading
  5. Things to read

Latest Release

Date Group Release
05/24/20 Light Novels Translations c120
05/23/20 Light Novels Translations c119
05/22/20 Light Novels Translations c118
05/20/20 Light Novels Translations c117
05/17/20 Light Novels Translations c116
05/16/20 Light Novels Translations c115
05/15/20 Light Novels Translations c114
05/11/20 Light Novels Translations c113
05/11/20 Light Novels Translations c112
05/10/20 Light Novels Translations c112
05/09/20 Light Novels Translations c111
05/08/20 Light Novels Translations c110
05/03/20 Light Novels Translations c109
05/02/20 Light Novels Translations c108
05/01/20 Light Novels Translations c107
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41 Reviews sorted by


chadsomenezz
New chadsomenezz rated it
May 24, 2020
Status: c50
Okay first, The MC... He is a theft with assassin kind of power, An assassin.. But his motto in life be like (I will never kill anyone even if that someone kidnap my girl, or if that someone throw someone to a bunch of orc to get killed/raped, I will still not kill him) that kind of character. Which really irritate me.. I mean seriously author ? why do heck are you writing a novel about assassin/theft when the MC is wimpy shit.

And if you like an MC who... more>> is an idiot that will say the name of his lover repeatedly in front of strangers where in his lover is in fact a wanted by the kingdom and the king want to finds her to control her power or something. Then go ahead read this. <<less
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Epythymy
New Epythymy rated it
May 24, 2020
Status: c43
An extremely superficial novel.

Plot has no depth, most of the characters have less than 80 Iq and aren't capable of producing any complicated thoughts (MC isn't much different).

Same goes for the romance. It's no less unreasonable and superficial. Protagonist is heroine's saviour so it's possible to understand her feelings, but MC's devotion makes no sense whatsoever.

It is not a harem story but all the simple-minded female characters have some sort of feelings for our normal-looking 15yo protagonist. And it is annoying. There were 6 more potential heroines just in the... more>> first 40 chapters. What for?

And don't let the premise and first 2-3 chapters to fool you. MC is a typical japanese beta. No need to even think about killing thugs, villains and people who offend him, he is saving them instead.

I've dropped this sh*t after our 'assassin' MC went to save 5 thugs who did their best to shame him 10 minutes ago. <<less
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byunisperv
byunisperv rated it
February 12, 2020
Status: c72
How do I say this...I am 80% sure this WN is written by a teenager.

The story wants to tell us that the MC is someone smart, arrogant and knows what he is doing but it came out as the opposite. The author often tries to bring out serious situations or adult conversation but ends out as the author trying to be edgy in building up MC's character. I get that MC is 15 years old and he thinks he is smart and knows about everything but that doesn't mean the... more>> adult should think the same too. As the story progress, we can see that everybody turns stupid when interacting with MC. They suddenly turn childish.

This WN a generic Japanese isekai troupes with nothing special to it. The story is bland and the way the author writes it sounds shallow to me, it shows how lacking he/she is in life experience.

Spoiler

MC is your typical 15 years old wannabe edgy kid; thinks he is too smart for his age group, thinks being a loner is cool, isn't close with his family, being rude to everyone. If he was American, I can assure you that he watches Rick and Morty and have an IQ over 500.

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cartman-un
cartman-un rated it
January 2, 2020
Status: c312
A good novel with good MC, The MC is a normal person, thinks like a normal person and struggle like a normal person despite havng some OP powers, He is not that OP actually.

Anyway, the author put some effort to create character development though you will notice some unpolished moments, but that's just okay since this is a web novel.

Some people might think this is a Harem especially since the MC has an early Romance with the heroine and other few love interest surrounding the MC, but don't... more>> be fooled! This novel isn't a harem, the MC stayed true to the main Heroine, though there are other girl (s) interested in the MC, the MC will only romance the Main Heroine and other heroine candidate doesn't have a chance or at least that's what the personality of the MC imply. This is a good news for Non-Harem lovers. <<less
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Deadmilkmen
Deadmilkmen rated it
January 23, 2020
Status: c62
Why is this rated so highly? It's stereotypical Japanese MC nonsense. If you're into reading about sexual relations between a 15 year old boy and a 14 year old girl, fill your boots. These novels should get a "stereotypical Japanese isekai" tag.
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Lacking Motivation
Lacking Motivation rated it
December 12, 2019
Status: c34
Everyone who rated 1-star did you even read it!?

A rare flower among the pile of sh*t that Japanese novels usually are.

  • MC is smart (somewhat) and has some morals.
  • The side characters aren't brain dead and are more than just stereotypes.
Most importantly, the MC isn't a beta-cuck.

My only problem is that the world and system is a bit underdeveloped and not explained very well. Also,
Spoiler

The s*x scene was so sudden and felt forced. It wasn't explicitly described but I would have preferred some development before it happened.

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walang16
walang16 rated it
January 13, 2020
Status: c55
i really should have read the tag (s), and the art that is smack dab one of the first things you see as you scroll down from this page, a boy & a girl and the [Romance] tag.

opinion below is biased as it is mine: (2.5 stars for me)

it was such a good start. Not too OP, just unique/niche skillset that you can play around with and work for you. Not the usual beta as well and that already elevates it for me. The groundwork was done decently that... more>> it I immediately added it to my reading list.

everything was just an upward swing until the girl from the beginning chapters came back and the MC just turned dumb. I dont even mind an out of the blue sexy time bet. Them as the MC's reward for rescuing her, I (read: we) can just skip that as it doesn't add to the story

then came the drastic downswing. So much so that it might even be worse the '08 recession.

i really should have focused more on reading the tags, specially the romance one. It was a mistake on my part. Up until the points I'm regretting now, this was a very good read.

(a hope/wish that the girl disappears for the rest of the story and only come back at the end, that would make me come back & read this, skip past those "couples" chapters and be a solo adventure again) <<less
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rosie94hrpr
rosie94hrpr rated it
December 5, 2019
Status: c15
This is your standard Japanese isekai fantasy, but it's clear the author actually but some time and effort into it, which makes a big difference. The fact that the translation is good helps a lot too. I like that the skill tree is organized and easy to understand, and that, even though the MC has an incredible skill, he still makes mistakes and by no means a master of stealth or assassination or anything. It is a bit bland right now, but hopefully more developments will come in the future.
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Pendragon05
Pendragon05 rated it
February 4, 2020
Status: --
Overrated series. I do admit that I had my fair share of novels with the same plot like this in the past but it's such a disappointment. MC was supposed to be rational smart character but then always make stupid childish decisions or naive decisions lmao. So much for being a "smart" character. Example, MC "supposedly" find the receptionist annoying but he still tolerate it like it's nothing. What a f*cking hypocrite. Also had the typical plot of hey because you're a beautiful girl then I'm gonna save you bullshit.... more>> But anyway maybe I just read a handful of good novels lately that I can't stand reading any subpar novels like this one. Overrated series with typical MC disguised as "smart". Even the novels that I read with similar plot in the past were miles ahead in terms of execution. The only redeeming quality is the translation which is good. Overall, this novel is only for those people who have yet to read a better novel with a similar plot or a novel of a high quality. Or maybe those who have poor taste or have a habit of reading subpar novels for pastime. <<less
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Dg2
Dg2 rated it
February 16, 2020
Status: c26
You have a MC who thinks he's all that, but in reality he allows everyone to walk all over him. All the females he met so far are B's except for the female romantic interest. This girl is love at first site for the MC where he acts like a toddler with a crush around her. I can't stand this kind of MC who doesn't remain consistent with their personality that the author sets them as. Right now you have a edgy bipolar teenager making stupid mistakes and gets flustered... more>> with killing even though he murdered a human in cold blood. The only redeeming factor I could find in this fic is the ability system itself and how it functions in this world. Other than that I wouldn't recommend other people this novel as the character interactions get annoying quickly. Everyone seems to have an intuition of 100, but somehow they keep coming to misunderstandings of the MC's power. Believing he is 'lucky' all the time and because of his 'luck' they're allowed to act s***y towards the MC when he talks to the beautiful (twoface) receptionist or when he downplays his involvement in saving the 'damsels' in distress. This is just a subpar power fantasy of a teenager with nothing unique/filling enough to stand out from the rest. Rate 2.5/5 <<less
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LoLeviathan
LoLeviathan rated it
January 22, 2020
Status: c61
I do recommend this novel.

But, I do not think it should get 5/5 (as I have given it), but because of how many sh*t novels there are with a generic harem, bad worldbuilding, generic protagonist, and no plot to save it from the styx river. I think this novel does deserve a 5/5 compared to the sh*t novels (many people wont agree) like the second coming of gluttony (4.6 or something). So lets get into why I do recommend this novel (at the moment I am at)

First is definitely... more>> the translator. They are translating all the time and releasing constantly! Its really great and I don't have to wait like 5 days for some other novels (AND ITS ONLY 1 CHAPTER!).

Next is the protagonist. Now, you might say that he is OP as said in the tags, but really he's not. BECAUSE HES SMART. He has personality and he actually plans his moves. It feels SO much more realistic and even though he does have one OP power. He still can be killed if methodically planned. And I haven't even mentioned his personality. He develops, grows, changes his ideals, and finally isn't afraid to kill people. Yeah 'isn't afraid to kill people', well I like this because he doesn't seem bad or good. He seems like he can follow what he thinks is right and what he should do. Cheers!

Now I love how the book gets straight to the point. It doesn't really waste time with stupid filler or anything sh*t like that. It actually continuously develops. Although filler is good at some times.

Next, is how there is no harem (I think) like all other novels. Harem is bad, because your story can go downhill quick if you dont actually plan it out. Its very very hard to make a good harem story. Usually because character personality goes down the drain and the world around them just seems like it's there. Like please! Tell me a good harem story.

Alright, now is the world building. The pacing isn't too slow and it isn't too fast. Its perfect. Easily painting the reader a clear picture and gradually adding things to it so you dont get that empty feeling with novels that have no world building at all.

Now is enjoyment, the way this novel well gets you happy I guess. With mixing all these factors together and the never ending story that continues on with more and more things to look at. And also the early romance (its not afraid to just straight up say 'well they had s*x so yeah...'), it really makes for a good novel. I highly recommend this novel. But, of course there is probably another hidden gem out there I have yet to read.

Also I tried to tailor this review without giving my opinion on things, so it actually seemed more genuine. Hope you like the novel!

-LoLeviathan <<less
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NegativeIQ
NegativeIQ rated it
January 21, 2020
Status: c60
DON'T LET THE TITLE FOOL YOU. At first I thought this would be a overly cringy power fantasy, but it's far from it. This is one of the few JP isekai novels on NU that has kept me reading non stop, and for good reasons. It sets itself apart from the dumpster fire that is JP isekais with good characters, no overly ridiculous, sea of women (or men) harem, no power fantasy that gives the author wet dreams at night and in the morning, and an MC that can actually... more>> think! The initial romance was really disappointing tho, kinda ruined the overall romance afterwards.

All jokes aside, this is truly a gem among the heap of trash (JP isekais) out there, I definitely recommend giving it a read if you're looking for a refreshing isekai. It's too bad that there are only 60 chapters available at the moment, but I'm really looking forward to what this novel will bring in the future, I have high hopes for it. <<less
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Dorkieee
Dorkieee rated it
January 13, 2020
Status: c55
A Dorkieee review here

I personally feel that this is a really good isekai. The MC isn't really unique but he isn't bland either and as the story goes on we more of his quirks which I really enjoy, He's somewhat naive but at the very least he knows his own flaws and actually reflects at his mistakes. Also he goes for more realistic choices.
    • Romance- its fast to the point where I think its too fast but its not really anything that's destructive to the overall story. The female lead is also likeable and isn't annoying, she actually helps and isnt a burden which is nice. Im looking forward to see what they do with her character development since she has a lot of room to grow
    • Action- Im not really good at rating fights and whatnot but the way he uses his stealth is quite fun. Its interesting how he combines the skill he gains to fit his fighting style. The way the RPG system works also isnt complicated so you wont really forget his abilities plus the author always shows his status everytime he does some upgrades.
there's still some of those generic cliches but I mean whats an isekai without them.

All in all this is something I think is worth your time to read.

Side note-

the translation team for this is doing a great job, keep up the good work!
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TerraEarth
TerraEarth rated it
March 29, 2020
Status: --
I find issue with a lot of details in this novel.

The MC's cheat-ability is a 'soul board' (rpg-esque talent tree) used to unlock abilities. You get points for ranking (leveling) up and for growing older.

The structure of the talent tree as well as the acquirement and usage of ability points (soul points) is inelegant and uninspired. MC seems to have little interest in developing his character in the truest sense and instead seeks to find whatever shortcuts he can so as to not get his hands dirty, he argues that... more>> this is because he is "efficient" and believes himself to be superior/above others when clearly, he is not. He makes a point about not standing out yet goes about actively doing just that by accepting quests far above the standard. Despite his insistence on "efficiency, " he ignores advice from others and actively seeks to bumble about with little thought in this foreign world. He is specialized as an assassin-type yet screams during missions when he discovers a pair of panties in a wardrobe.

Also, did I mention they have plastic bags in this medieval fantasy world? <<less
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DimaShishandra
DimaShishandra rated it
March 21, 2020
Status: c88
So MC is ~15 years old. And his thinking process is pretty much is at this level. There are some flaws like he thinks that he needs only one lover. It's not like he is wrong it's just all boys wants many beautiful girls. Same about some of his worries. But it's not bad.

Bad is the world. If MC is 15 years old it feels like all other characters are 10 years old. I would like to see some adult thoughts or at least some thoutghs. Other people are just... more>> brain dead and simply reacting to MC <<less
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Jakeel94
Jakeel94 rated it
January 14, 2020
Status: c55
I thought it was a very well written piece on a professional level

I love how the level system works, it's bit unique in a sense. Honestly, I question some of the MC's decisions in how he is choosing to grow his character, but everyone would because everyone would develop themselves in a different way.

I think the Romance in this Novel is bearable. It honestly makes the story worse because as capable as she is she has no place. She is a mage she can't really doesn't fit into what he... more>> is trying to do in his stealth mold. Then again I guess it is typical to have a team of adventures that specializes in various fields.

The novel finds the middle ground so the MC isnt OP, but at the same time he is pretty OP which is cool. He still has a lot of room for growth so the novel makes it so you want to see him keep growing and finding out whats next.

One Red Flag for me, ill add a spoiler tag, but I dont know if its really a spoiler.
Spoiler

A gun was added which I personal hate in my fantasy novels and the groundwork for "Gods" being involved was made which is usually when isekai novels descend.

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Overall it has become one of my favorites and I think of myself as an Isekai Novel connoisseur. <<less
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Arkazzy
Arkazzy rated it
April 10, 2020
Status: --
Honestly I like the premise and it was fun read until he rescued the girl and got involved in politics

Spoilers ahead:

It quickly turned into the standard Japanese isekai where the reincarnated individuals are all Japanese and the author is busy jerking off Japanese culture. The MC being cold enough to kill someone is certainly a plus, but he is just unnecessarily arrogant when there isn't anything remarkable about him. His ability should have been a niche that helped him explore dungeons and get past beings far stronger than himself undetected,... more>> but it just turned into an all-around op badass that could easily solo the strongest knight of that world's strongest country.

The whole bullsh*t about him going to the allied nations and working with idealistic children of the ruling class to change the system is unrealistic, unnecessary and utterly boring. I understand that the author needs to give direction as the MC doesn't have any goals, but getting him involved in politics when he really has no idea what he is doing is just dumb. I don't really understand what these authors are thinking when they write about a 15 year old being able to run a country better than people who have spent their entire lives learning to do so.

I like the fact that there is an early romance and the MC isn't a virgin who starts blushing the moment he sees a woman, their ages being 15 and 14 is just weird, there is no reason to make them that young. The female lead is supposed to be strong with a lot of untapped potential, but she doesn't add anything to the novel at all and is just like another doll who can't think for herself and only exists to put the MC on a pedestal, a staple of the JP Isekai genre <<less
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Cactiii
Cactiii rated it
January 20, 2020
Status: c110
This story is one of my favorites on novel updates, I could go on in this review about good points about the book but there are enough reviews that talk about it so I'm just going to say this is really well translated and you should go check it out.
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stevedtat
stevedtat rated it
December 21, 2019
Status: c18
I binge read up to chapter 40, and found I really like this novel. I'm not usually into the whole "I don't want to stand out" things that Japanese novels always do, but this novel is really thought out and you can tell the author has outlined his story before writing it. Usually some authors just free write and story goes haywire, but not this one. The author is really sticking to his story. Although, he does do alot of describing the stealth skill, ... more>> he doesn't do it overly much to make it annoying. And I love how the MC is smart and not a chicken sh$t. I can't wait for the updates! <<less
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Chibichan
Chibichan rated it
November 4, 2019
Status: c12
I'm with the UwU on this. So far so good. The additional included artwork is a nice touch too. Translation is also good and MC isnt stupid. So far the system to see his stats isnt too complicated and more well thought out than other systems from similar LNs/webnovels I've read so far. Hope chapter releases become more frequent because binging the first 12 chapters was super fun.
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Siikalahna
Siikalahna rated it
May 8, 2020
Status: c110
The story has a good premise and started off strong. MC seemed to be, from the first glance, an intelligent one who thought things through and didn't just go around killing everyone who even slightly annoyed him. However, ... more>>
Spoiler

he has a very bad habit of not even half-assing the problems he faces. It's like he thinks only the world and people in the immediate vicinity at that very moment are active, and anything that happened even last night is over and forgotten and does never happen again. Like in the very moment in the story I'm at. Had he not been a massive dumbass, he would've dealt with the king back when he fought the knight captain. What made him think the king wouldn't search for her, especially since all the evidence he gave them indicated she was alive. Of course the king is going to try and find her, you dumbass! Always kill the 'mastermind' the first chance you get. But noo, gotta be the 'completely out of touch with reality' japanese MC from the modern world who apparently lived under a rock without access to the internet (because if he had access to the internet or even newspapers, he wouldn't be such a massive idiot).

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berdanka
berdanka rated it
February 20, 2020
Status: c15
So cringy. I know that JP LNs are generally infantile, but this one is outright immature. It may be a loud statement from someone who just completed c15, but everything about this novel is silly and devoid of substance.

When you pick an isekai JP novel, sadly, you already prepared to face a bunch of overused tropes, but this author took it to the new level, making me feel like he goes trough the generic checklist:

... more>>
Spoiler
  • the ability to read the status of other people,
  • the adventurer guild,
  • a cute counter girl doing an introduction,
  • the first quest is herbs picking,
  • arrogant adventurers and underestimated MC,
  • catgirl receptionist in a hotel,
  • etc.
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I can take only that much of overused tropes, but the author doesn't think so and keeps piling up. The worse part is that the author uses these tropes superficially and doesn't explore their potential. It just shows that he doesn't have anything good in mind and trying to assemble his story from the popular parts.

MC is also completely inane. His speech sounds childish and cringy, I doubt it's just because he is 15yo. It's more like the author's skill is inadequate for the task; he can more or less describe events and actions, but you can see how the quality is falling flat when it comes to characters talking. Chapter 15 was so awkward that I had to make pauses twice to stop myself from screeching and rolling on the floor. That was a very important dialogue for the future of the female lead and MC, but it was so autistic it felt like something wrote by an edgy kid. It destroyed any expectations I had for this pairing, here is a short quote:

Spoiler

- I'LL PROTEC!

- NO! STOP GIVIN' ME HOPES!

- I SWEAR I'LL SAVE YOU!

- THEN I WILL BE YOURS FOREVER

-------------------

They saw each other only once before and it only took a few minutes. It's that silly.

The next time I'll choose the novel with an Early Romance tag, I should read it while listening to Eurobeat to enjoy the speed.

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2 stars are entirely for romance (as lame as the rest of the novel though) and s*x. We need more romance in the action genre; as well as female leads that are not fading into the background with time. It's frustrating when MC's girlfriend (s) only allowed to make an appearance every 50-100 chapters. Harem is ok too, it just has the same requirements as one_true_love story. Also, I hate teasing, so early s*x is really welcomed even without going into porno-tier details. It gives more screentime for important things like a plot for example. <<less
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