Breakthrough with the Forbidden Master

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“Compared to our time, the current generation just aren’t as reliable” they said, “Still, isn’t he the son of the Hero?” How annoying.

It’s been over ten years since the battle between mankind and the demons ended. The children of the heroes who saved the world are all grown up.

One of them, Earth, was a talented man, and everyone expected him to succeed his father as a warrior and defend his country, but Earth was always wary of his father’s title.

One day, Earth is shocked to find his father’s sword, which was used to overthrow the Demon King, sealed in his family’s mansion.

Because trapped within was the ghost of the Great Demon King who was unable to pass on and continued to roam the world.

For some reason, only he could see the spirit of the Demon King, and the Demon King possessed him through the sword.

Every day, forced to coexist with the spirit of the Demon King, they live a strange shared life, when the Demon King whispers to Earth on a whim.

“I have a grudge against your father. If you want to get back at your father and the world, I’ll train you. I’m free.”

Earth receives special personal guidance from the Demon King just to get back at his parents and the world.

Then, in the coming days. The hero’s parents, the heroes of the past, the first love, the princess childhood friend, the geniuses of the era, and the world will tremble.

Associated Names
One entry per line
Breakthrough with the Forbidden Master – So what if the Hero’s son is the Demon King’s disciple~
Kindan Shitei de Breakthrough ~ Yuusha no Musuko ga Maou no Deshi de Nani ga Warui ~
禁断師弟でブレイクスルー~勇者の息子が魔王の弟子で何が悪い~
Related Series
N/A
Recommendations
Ankoku Kishi Monogatari ~Yuusha wo Taosu Tameni Maou ni Shoukansaremashita~ (1)
I’m the Evil Lord of an Intergalactic Empire! (1)
Picked up a Demon King to be a Maid (1)
Akuyaku Reijo Ni Koi Wo Shite (1)
My Death Flags Show No Sign of Ending (1)
Renegade Immortal (1)
Recommendation Lists
  1. harem n romcoms #2
  2. Harem for the cultured
  3. the culture entertainment of isekai
  4. My cool list
  5. novos

Latest Release

Date Group Release
05/12/21 Sads Translates… c131
05/08/21 Sads Translates… c130
05/01/21 Sads Translates… c129
04/28/21 Sads Translates… c128
04/24/21 Sads Translates… c127
04/17/21 Sads Translates… c126
04/14/21 Sads Translates… c125
04/10/21 Sads Translates… c124
04/03/21 Sads Translates… c123
03/27/21 Sads Translates… c122
03/24/21 Sads Translates… c121
03/20/21 Sads Translates… c120
03/13/21 Sads Translates… c119
03/10/21 Sads Translates… c118
03/06/21 Sads Translates… c117
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45 Reviews sorted by


AsianInvasion111
New AsianInvasion111 rated it
May 8, 2021
Status: c95
It's your typical clich jap novel. The story definitely starts out well with plenty of exposition towards its current setting and back story towards its characters. The fighting is front and center while romance is mostly on the back burner. Honestly it's a decent read up to a certain point as the author does ok with character development. But for me I felt unmotivated to read anymore of this novel as it feels like the author is just intentionally pushing the MC down. He gets stronger and wins a fight.... more>> But suddenly oh there's this new character that is 10x stronger than you, but don't worry the master will make you stronger in a short period of time. Oh did I forget to mention that MC will just always barely be able to win cuz of his "heart", "willpower", or omega denseness. It feels like DragonBall z but goku is a beta instead of an alpha Chad or better put why did you place this guy as a rival if there's a new rival out of nowhere that's 10x better. Not to mention the author is always putting the MC down. It's not even humbling it's literally just oh you got good score? Well this bit*h is better than you, ha you loser. Also he only grows up in terms of heart and fighting, not really much else in any other department. He doesn't get better at reading people, smarter, or is always listening to other people instead of thinking for himself outside a fight. Those are just my gripes. <<less
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Mt Tai
New Mt Tai rated it
May 4, 2021
Status: c120
A genuinely good work. It's a level of quality of storytelling that I'd expect from a book. I felt genuinely touched at points and the characters are compelling. The translation is of course MTL but surprisingly I didn't mind it. The translator edits it well enough that I don't get distracted by mistakes. It's absolutely worth a read.
1 Likes · Like Permalink | Report
AsuraEND
AsuraEND rated it
December 6, 2019
Status: c225
Dense Protagonist? I don't think he's dense at all, it more like he thinks the princess actually hates him, and for a good reason to. The chick takes tsundere to the extreme. I mean if someone spreads rumors that I'm a pervert just so I don't get a girlfriend I'd think that the chick hates me.

Hell he doesn't even know that they're gonna get engaged while the princess does know.

... more>> Edit:

Rather than calling him dense, I think emotionally repressed would work better. He's never truly had any meaningful role models other than Sadiz. And we all know that he genuinely loves her, she's practically raised him and has been his number 1 supporter. Earth's mother was never around and his father only criticizes him and compares him with the other children. In all honesty the author did a really good job making me genuinely dislike Earth's parents and his Princess fiancé. <<less
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erenbey
erenbey rated it
November 26, 2020
Status: c54
Novel is really good but I wish translation team dropped it.

This novel deserves more than low quality mtl, seriously translation is so bad, read it if you have patience

Sads scans please drop this and let someone else take it. Just mtl something and ask for patreon money is disgusting and you are destroying the novel. Biggest turn off for this novel is translation quality, other than that it's great imo.

Horrible translation ruins it tho.

26 Likes · Like Permalink | Report
Meloonseed
Meloonseed rated it
November 27, 2019
Status: c10
Translator-san, author-san, you better not drop this >: (

Alright. We got a decent MC. He's not the most likeable, not the least likeable. He's just a regular person. Being pissed, by regular people reasons. Yeah. I also like that he's not an omniscient and omnipotent guy. He's a little bit dense, but it's kind of justified imo. And btw, he's not going to be doing the against the whole world thing like in the synopsis.

Alright, I'm not sure where I'm going. But I know this read isn't worth only 3.9... more>> stars. Might be, for the people who want to read power level shit, but. Yeah, if you want to read a less empty feeling novel where the story isn't really focused on beating up people but rather the relations, here. <<less
19 Likes · Like Permalink | Report
Light novel junkie
Light novel junkie rated it
February 18, 2020
Status: --
I'm loving this. Now that that's out of the way here's why :

Main character isn't another naruto/kirito. No deus ex machina power of friendship bs power up. He's actually putting in effort to get to his goal.

MC is more relatable as a person. Not another npc esque MC who when mocked and ridiculed just takes it with a grin and wins those who mocked them over because never give up.

The characters. Really only ones I actually like are earth, the demon ming and sadiz. I literally want MC to verbally... more>> decimate his parents and that tsundere to the extreme princess in the most epic of ways. It literally raises my heart rate thinking each chapter brings us that much closer to that. <<less
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sdgao02
sdgao02 rated it
June 19, 2020
Status: c61
I think this story is great. The main character has understandable issues with his family and the world/country’s perception of him. All the kid wants is to be recognized for all of the effort he has put in, and to not be known as the “son of the hero, ” but rather as himself. I find the plot extremely compelling and honestly can’t f*cking wait for more chapters to come out to see how the kid turns out in the future.
10 Likes · Like Permalink | Report
Funggen
Funggen rated it
March 14, 2020
Status: prologue
Novel with great MC. I never knew a teacher and student relationship could be this exciting.

I am happy that it doesn't following the temp. But, those naming sense lol..
8 Likes · Like Permalink | Report
HamsterOverlord-sama
HamsterOverlord-sama rated it
November 30, 2019
Status: c11 part1
1. It's a cliche story with a school Boi MC who has daddy issues and average rebellious teen problems. And it possibly has harem elements.

While I usually despise such stories, this one makes MC, at least at the time of my reading it, much more human and much more relatable. One can actually invest into his character and feel bad or sorry or embarrassed for him. His problems feel real and relatable. I like it. The rest of the cast - pretty meh, honestly. The demon king character is somewhat... more>> unfleshed-out.

But overall the story so far is light and enjoyable. It won't have much depth, possibly the quality will go downhill but I at least hold some expectations. That's why I rate it with the generous 4-star score <<less
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This novel feels like a shounen manga in light novel form. It's a great story that just feels like it's just getting started. If I were to describe the first arc, it felt like going back to the Land of Waves arc in Naruto. I feel that the world is bigger and that what we've been shown is the smallest portion of it. From what I can tell the next part would be amazing.
7 Likes · Like Permalink | Report
CHARACTER MATTERS
CHARACTER MATTERS rated it
March 19, 2020
Status: c101
It starts fine as the MC gets away from his problematic family and acquaintances, and goes adventuring while having a maou instructor possessing him. After that, it's just a typical story of a dense and naive protagonist having world exploration, strengthening himself and gaining harem members, with many clichés along the way, which is disappointing.
7 Likes · Like Permalink | Report
twdavis78
twdavis78 rated it
January 2, 2021
Status: c101
The beginning of the story is quite fun and enjoyable - enough so that I google translated a bunch of it beyond 102 because I couldn't get enough of it. Unfortunately, as the story goes on it becomes much like a Rocky or Creed movie with everything but the training montage and fighting stripped out of it. As the lead grows stronger, the story becomes empty. Any female interest appears and than disappears like a fart in the wind when their arc is haphazardly done with minimal further development which... more>> makes the story develop boringly as the male lead single mindedly trudges along to the next battle. <<less
6 Likes · Like Permalink | Report
KDV
KDV rated it
April 17, 2020
Status: c48
It's a good ln to read for my opinion although I havent read much. THANK YOU the author for creating this. The MC was very relatetable to me in a way.

... more>>
Spoiler

LIke how he is being compared to more talented people and being ridiculed by random people who knows nothing of his limits and abilities. It kept me interested in the novel hoping for the day he sticks it to them and makes everyone remember his name and power. I almost cried at the end of volume 1. The moment where he gave up on making people see who he really is and left everything behind.

[collapse]

I hope someone picks it up. Thanks for translating it for us Sads. And thank you to the future translator. <<less
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Redmi
Redmi rated it
January 30, 2020
Status: c218
This is another novel that taught me to not judge a novel by its title. I have seen this novel around for quite some time in novelupdates' index but I ignored it because the title reads like a ghey CN novel from jjwxc. One day, my finger sleepily slipped and I touched the hyperlink for this novel. Only then I found out that this novel is a JP novel. Seeing that there is no yaoi tag there, I started to read this to see if this novel will get into... more>> my 'recommendation' list or not.

Voila, I am so impressed with what I have seen from what has been translated, I decided to continue reading the raws, for 4 consecutive arcs.

Spoiler

This whole novel is pretty much a Tengen Toppa Gurren Lagann fanfic. The fact that it gets a novelization without being sued to the hell and back is a mystery by itself.

The first arc (tournament arc) is great, second arc (the first best friend arc) is meh (the only good thing in it is the MC met his DFC Princess Nia waifu) and the third arc (where MC met with a guy similar to the dragon guy from Demon King, Retry novel) is just a little bit better. The fourth arc (another tournament arc) is just as good as the first one, which greatly redeem the series back. And from what I have read for the fifth arc as of now, it should be better than 2nd and 3rd arcs, but not as good as the 4th or 1st ones.

Conclusion: Novel needs more tournament arcs?

[collapse]

⭐⭐⭐ from me as of now.

edit: As of latest chapter 218...

Spoiler

The fifth arc turns out better than expected. It is not good as the preceding 4th arc but is vastly better than the 2nd and 3rd arcs. This novel could have been much better if the author doesn't make the 3rd arc as bad as it is now. Maybe a rewriting is in order for the 3th volume of the light novel?

[collapse]
<<less
6 Likes · Like Permalink | Report
mustafajennings
mustafajennings rated it
January 6, 2020
Status: c60
The story is great, it's really a breath of fresh air compared to similar novels. It takes roads other novels wouldn't.

Almost everything that happens in this book happens for a good, justified reason. The author likes to foreshadow things, and every chapter has a reference or two: ... more>>
Spoiler

the MC's last name is Lagann and his best technique so far is a magical drill. Also one of the ninja techniques is literally called "Uzumaki Naruto"

[collapse]

Rather than being able to see what will happen in this book by using your experience of other books, you use your experience of real life. You can see that almost without thinking the MC will do something potentially life-changing in the future; then, when there are actual consequences, all you can say is "WHAT THE HELL DID YOU THINK WAS GOING TO HAPPEN!?"

This book makes use of some tropes (not including reincarnation) simply as a way to help reader understanding rather than to make a cardboard cut-out story. <<less
5 Likes · Like Permalink | Report
Animeninja808
Animeninja808 rated it
November 7, 2019
Status: c4
Really love stories like this, MC is angry, hateful, underestimated but then gets help from humanities greatest enemy who doesn’t like a story like that.
5 Likes · Like Permalink | Report
restiaest
restiaest rated it
February 22, 2021
Status: c371
This is my first review. I am a long time reader and am usually lazy to write a review. However, I would like to express my thoughts on this great masterpiece. I've been reading novels since 2013, started from SAO, and ventured from jp to cn and kr novel. As someone who expanded the horizon reading through tons of cliche, no doubt this is quite a typical shonen novel. I've seen people flaming about how it's just training and fighting stronger opponents, rinse and repeat, just like your typical Chinese... more>> MC (lol).

However, all the fight scene and training are the key process to building the MC to what he is at the latest chapter. None of these "old" fight scenes and characters are forgotten and are forged into an experience for the MC. He's depicted as a spoilt brat at the very start despite not having his effort recognized. As the story progresses, we can see how he changed as a person, how he handle his "love" relationship and dote on his younger "sibling".

At one point, it can also be seen from how he handled and faced his family and friends when they met again after he left home. Yes, he is dense at times and you may think he is just being a wuss. He is just 15yo and has his own conflict/ thought process. The realism instilled by the author can be felt tremendously, such as the awkwardness and internal struggle.

The world-building is great and everything is related to one another --> explained in further chapters

TLDR: This is not a typical series where the MC just fight and grow to fight stronger opponents. The main joy for me is the interaction, and how the MC grow to become less of a brat: from how he left home, found a friend who then left him for his own sake, expanded his horizon by mixing around with people from a "commoner perspective" and "underground operation", to him finding a new "home" where he is welcomed and appreciated for who he is, while also facing new challenges only to solve them and gaining new allies/ friends in the process. If you are at c100+ of this novel, the best has yet to come (not gonna touch on this, huge spoiler). This novel is about world-building, character growth, to the point of how the world is at its current position (demon vs human war). Everything is well explained.

ED: typed this immediately after reading the novel, omg so many typo and grammar errors lol (touched up on it) <<less
4 Likes · Like Permalink | Report
YaBish
YaBish rated it
August 27, 2020
Status: c76
This is such a good novel. The fantasy isn't anything new but the story brings in actual realistic problems people have and the MC just happens to have those problems. I saw some people say Earth is perverted but I don't see how. He's a hormonal teenager thinking about the girl he's in love with. I laughed and even teared up because some parts are emotional. And the action is solid too because in a fantasy world, the MC is The only one going against expectations. He's not even an... more>> OP MC, just a hard worker with a great teacher. This isn't a revenge story, it's about the MC proving something to everybody.

update Ch115 - I'm gonna be honest without spoiling anything. The novel is starting to go downhill. The story isn't moving on and it's stuck in a place where there's no development. Still I suggest reading it and when you get to the Island Arc, hope it gets better. <<less
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KamiKira00
KamiKira00 rated it
June 18, 2020
Status: c30
Interesting story of a child of two heroes. Despite doing better then parents his age, he is always looked down upon. Despite doing quite great princess always verbally abuse him, father claims that he is worthless (it was said in other words) and he was never there for MC.

Despite serious MC relations to others, this story is a comedy (typical isekai-ish type story) where all those abuses through MC's life disappear as if that never happened and everyone lives happily ever after (good example is how with 2-3 exchanges during... more>> one conversation with his father, MC suddenly forgot all that neglect and almost claimed that better parents can't exist). I seriously instant jumps that doesn't make any sense (That happens when author stops looking at the story through MC's eyes).

Demon lord who went on a genocidal mission is happy go lucky guy??? Just based on that you can see that this story is on "Arifureta" level.

Just for that I can't go past 3.5 points barrier. <<less
4 Likes · Like Permalink | Report
SunsetChaos
SunsetChaos rated it
March 31, 2021
Status: c122
You'll definitely enjoy reading this if you've enjoyed stories like Mushoku Tensei or Sevens. It's not isekai btw.

Also, it seems to take inspirations from Gurann Lagann (minus the mecha). I mean, even the MC's name is Earth Lagann. The fights are just as epic and gets your blood pumping. This right here is some excellent shounen.

I anticipate an anime adaptation of this sooner or later, that's how good it is.
3 Likes · Like Permalink | Report
orpheus_rm
orpheus_rm rated it
February 27, 2021
Status: c256
I almost never write reviews unless I'm absolutely astounded at how bad something is. That is not the case today, ladies. As much as I appreciate the Demon King and our adorable clueless protagonist the reason that I'm writing this review is because I f*cking love the relationship between Sadiz and Earth. God damn for some reason their s*upid sh*t just makes me laugh and smile so much. 5/5 just for the maid

Agh it's just so good. All of the character interactions are interesting and make me feel genuine... more>> emotion. Which is actually hilarious because every single character is named after their (supposed) role in the story haha. Phianse (Fiance). Rebal (Rival). Hiro (Hero). Muam (Maam, like mom?). Shinobu (literally just a ninja). Bro (Bro). Fu? (Fu). Sadiz (͡° ͜ʖ ͡°). Treinar (Trainer).

I normally can't stand reading MTL because for me the quality of the text is the most important, but for this novel I couldn't help myself from reading ahead of Sads' translation. Sads translation quality is amazing but this story has me by my throat to the extent that I don't even mind reading tr*sh MTL with all of the pronouns and tenses messed up. Well... to a certain extent. Once new characters, places or concepts start getting introduced it becomes almost unreadable.

Top tier novel, couldn't recommend it more.

Edit: 6/5 for Aka

Edit 2: 7/5 for Bro <<less
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paragon_magnanimous
paragon_magnanimous
February 2, 2021
Status: c110
i came here after reading the manga. I didn't really expect that I would find such a gem here.

i didnt read that much novels, but still, this one is good. Or to say, very good.

the author is doing a great job by keeping up with the current flow. Protagonist was not any prodigy nor was some spoiled kid. Being the sole child of the hero and the war maiden, he couldn't satisfy everyone's expectations. He choose his own path. The character development of protagonist deserves 9 out of 10. From... more>> a dense teeanger, he is slowly becoming a man. I am looking forward to the day where he beats the so called god odin and surpassess his master the GREAT DEMON KING TREAINE'R. <<less
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