The Prohibited Isekai Life of a Certain Transmigrating Brother and Sister

Description

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One day, my twin brother confessed to me. “I’ve liked you since a long time ago. I want you to break up with your boyfriend and choose me.”

However, right after the unexpected confession, we were both caught up in an accident and our short lives came to an end… or that was how it was supposed to be. For some reason, we were reincarnated in different world as twins.

The world we reincarnated in was a world with Magical Supremacy. People with magical power dominated people without magic.

As twins, we were given the names of Ceres and Licht, and we grew up quickly.

However, I- who was born without magical power, was about to be sent to an isolation facility where non-magical people were held.

There was only one way around it. To make a s*ave contract with someone who possessed high magical power. At that time, Licht, my brother who was an elite magician, made a proposition to help me. “If you don’t want to be sent to the facility, form a s*ave contract with me.”

Just like that, our relationship as twins, which had turned to master- servant relationship, was the beginning of this twisted story.

Associated Names
One entry per line
Kinki no shujū keiyaku ~ tensei reijō wa otōto no to ai ni honrō sa reru ~
Master and Servant taboo contract ~The reincarnated young girl is at mercy of younger brother's obsessive love~
To aru tensei kyōdai no kinki isekai seikatsu
とある転生姉弟の禁忌異世界生活
禁忌の主従契約~転生令嬢は弟の執愛に翻弄される~
Related Series
N/A
Recommendations
Taking My Elder Brothers As Husbands (2)
Rebirth: Degenerate S*ave Abuses Tyrant (1)
The Transmigrated Cannon Fodder Overthrows the Male Protagonist (1)
Addicted to Boundlessly Pampering You (1)
Broken-Winged Angel (1)
His Canary (1)
Recommendation Lists
  1. Reborn, isekai, time travel
  2. Books I have read/tried and liked/disliked
  3. I love novels!!!!
  4. yandere ML
  5. Yandere Male Gods (>///<)

Latest Release

Date Group Release
08/23/19 Family Fun Translations c4 part1
05/09/19 Family Fun Translations c3
05/07/19 Family Fun Translations c2
05/07/19 Family Fun Translations c1
Write a Review
13 Reviews sorted by


laexdream
laexdream rated it
May 7, 2019
Status: c2
I've only read two chapters, but I'm already sold. The two main characters are cute, and the translation is great. Plus I kinda love the whole male yandere incest story..... I'm definitely looking forward to reading more.
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etherealbao
etherealbao rated it
August 20, 2020
Status: Completed
Translator here. I was expecting hot immoral smut, but it's so much more than that. This novel is very dark, I warn you.

Spoiler

They just starting to do something steamy from ch 22.

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26 Likes · Like Permalink | Report
lguwo1
lguwo1 rated it
August 28, 2019
Status: c30
For those with.. Refined taste. Very obvious from the description that the content is VERY dark to say the least.

You'll either like it or hate it, reading the blurb will give you a solid answer.
19 Likes · Like Permalink | Report
NotAWeeb123
NotAWeeb123 rated it
January 18, 2021
Status: c20
I don't understand why people are giving it 5 stars. I have so many problems with this story. Instead of calling it "prohibited isekai life" it should be called "school days 2.0", I say that's a fitting name for it. Makoto or the female lead is torn between your two male characters. But again, just like school days even though you know that makoto is a two-timing scumbag here the female protagonist did the same and finally broke his brother.

At one point she admits it then again she had the... more>> gal to play the victim card. Its makes it more painful as a reader to go through it. In the second life, as Seres, she who wanted to fall in love with his brother again did the exact same thing. That's when his brother went full kotonoha, I mean yandere (surprise Pikachu face).

Then later, the story is quite underwhelming, as she took deep inspiration quotes from her maid and tried to accept his brother's reasoning a bit. The thing which annoyed me till the end was the fact that she was a 's*ave'. The only reason she was living better and not in a facility was because of her brother. She did not even possess the right to get married but for plot convenience and to get a villain aboard, the writer introduced Nate and made her fall in love. I can't understand, how could she accept it? Previously, flashbacks of how conscious she was of others showed as the reason for the fallout of their sibling relation but here she as a 's*ave' decided to throw the moral barrier and fall in love? I don't even understand what goes into the writer's mind.

It's like the character's themselves are going through an identity crisis. <<less
14 Likes · Like Permalink | Report
S1lly
S1lly rated it
April 6, 2020
Status: c4 part1
I think the cover and the story remember me a bit of the vocaloid Rin and Ren, so I am afraid of a sad ending.

However until now, I think they did a great job. The author explored the feelings and thoughts of the male lead and gave them a good deep. Like, he's in love with his blood twin sister twice..... He wouldn't be okay with this.

And the author put it in the story.

For this alone they already deserve praise, it's hard to write a incest and... more>> to make it plausible.

And it's a incest.

I like incest but if this gross you out, you should stay away from this novel.

The genre is't something you should speak badly about, since it is very obvious from the sinopse about what the story is about. <<less
12 Likes · Like Permalink | Report
TripleBaka
TripleBaka rated it
August 24, 2020
Status: --
I want to say thanks for picking this back up TL. I MTL and it’s a wild ride. Twins die and get reincarnated into a fantasy world where magic rules. There’s a ton of twists and drama. It can get pretty dark, with the brother slowly showing signs of possessive behaviour. Without spoilers, if you don’t like dub/non con incest, possessive guys, and manipulation don’t read this.
8 Likes · Like Permalink | Report
Djcool006
Djcool006 rated it
October 27, 2020
Status: c15
I love it, im only 15 chapters in and im seriously on edge because of the story.

I hope for a happy ending or atleast no NTR happening (im rooting for yandere brother). To be honest I just saw Smut and incest and that was the only reason I clicked on it but I stayed because I was hooked on the story and boy it did not disappoint me to feel anxious and excited at the same time.
5 Likes · Like Permalink | Report
Pyonhyeii
Pyonhyeii rated it
July 8, 2021
Status: --
When they said that this novel is dark, it’s DARK. I’m personally not a fan due to the heavy r*pe that goes on after chapter 22 and all of the character’s personalities, while I would say the ML has a more thorough character development in being that there’s minimal reasoning behind his actions, the FL is the epitome of the weak and pitiful shoujo heroine - if I had to compare her, she would be Yuki from Vampire Knight. Choosing the obviously worse choice even when there are better options... more>> for her. If you’re someone that gets disturbed over repeated r*pe scenes, then I would not reccomend. <<less
3 Likes · Like Permalink | Report
sydxia
sydxia rated it
January 18, 2021
Status: --
THIS IS ALL MY OPINION, PLEASE DON'T HATE ON ME.

First things first, I like the plot of this story, I don't usually read novels w/o smut unless they have a good plot, which describes this novel, but with a little bit of smut. I like the ML more than Nate bc, I'm into yandere guys (possessive, etc), and he seems to deeply in love with his sister. And no, I'm not talking about REAL yandere guys, bc that shit's going to be messed up. Although this is incest, overall... more>> it's a 9/10 for me. Honestly, I'd probably drop it if the ML gets a bad ending bc I really love him. : ( <<less
3 Likes · Like Permalink | Report
Nude_philoshopher
Nude_philoshopher rated it
May 1, 2021
Status: Completed
Man, what a ride it was....

As a devotee of incest sect, I must pass my verdict -this is a must read

I thought at first gotta be some steamy cultured shit. but I was so wrong.I will put the synopsis (with heavy spoilerzzz) in my way under spoiler tag beneath.

... more>>
Spoiler

Okay, first of all , this novel's main genre is tragedy

My man reincarnates after kissing truck kun (along with her twin sister O_O). Turns out he becomes some big ass nobles child. He has a twin sister (you know where this is going). He retreives his memory at 15 years old, and yeah, along with her big sister. Turns out he was a huuuuge siscon. He couldn't push on her sis in his previous life because she was taught it is ethically wrong (in my opinion, her sister is the most contradicting and annoying person in this whole story. She couldn't bear to watch his bro date with another girl but she dates another boy. ARRGGGH)

ANYWAY, after reincarnation, my boy starts to show his love proactively. But she keeps resisting. And then he pushes her down. This r*pe play continues for some time until, the author decides to add some f*cked up drama. She meets a guy in town and she falls for him. And turns out that he was also reincarnated. He was her boyfriend from past life (cmon). He couldn't bear the death of his friend and girlfriend and followed them to netherlands after meeting with truck kun.

Chizuru's (sis) brother, nozomu is a yandere. And there is a logical explanation. Their parents was extremely abusive and he always stood for her. And she relied on her. In this way, he falls for her (and extremely hard). But chizuru just had to get a boyfriend. Imagine your lover getting intimate with another guy. You'll turn into a yandere natarully. He turned into an extremely heartbroken person. And he thought of suiciding too (guess the yandere level.) That's why he acts more overbearing in another world, in fear if her sister falls for another guy again.

Well, when my man finds out that she's dating another guy in another world secretly, he decides to tune in metallic song and go super saiyan mode. The r*pe play gets rougher. Chizuru, that woman, blames her brother and runs away with her boyfriend. His brother finally cracks. He finds her after turning everything inside out. He captures her and impregnates her. Her sis reluctantly agrees at last that she will bear his child and raise the child.

But nozomu falls sick. Chizuru finds out that he had a incurable disease (i won't spill everything out) and nozomu exchanged his life with her. That's why he'll die. She, this foolish girl, finally gets scared. She finds out that she'll get most sad if her bro died. She finally finds her hearts sanctuary. And then she heals him (through a life exchanging method with 12 years sleep) And they succeeds and embark on a journey as a couple afterwards. As for the journey, the reason is-they were noble's child. The incestuous relation caused an ostracization of that family. So their father decides to disinherit them and banish them from the family.

In my opinion, The brother sacrifices him the most. The hardships that he had to go through will even waver tatsuyas (mahou kouko no rettousi) petrified heart. And the sister, she is a braindead hopeless soul. The bro is super talented too, and he works hard for a happy future for both of them (*sob* *sob*)

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The literary flow is vey satisfying. The tragedy is well written, capable of inducing tears. The romance runs very deep (well it's tragedy). Author really has a knack for tragedy writing (grits teeth)

Well, that's all the rambling. Sorry for the biased review. But I personally think it is a must read (not as a incest story, but as a tragedy)

P.S:If you think of reading this, on the last part of this novel, must prepare a box of tissue, otherwise your sleeve will get wet.

P.S (2) :If the author sees my comment (wishful thinking), I request, please write some extra story with steamy moments. You ended the story wayy abruptly <<less
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ToNy Code47
ToNy Code47 rated it
April 25, 2021
Status: --
My SATISFATION is Immeasurable and my day is SAVED.

Finally!!! After searching for a one-one incest story with no harem. Guys recommend me MORE something LIKE THIS. Please.
2 Likes · Like Permalink | Report
Dieter Lovat
Dieter Lovat
May 12, 2021
Status: --
I read this story about a year ago, And now it's time to definitely leave a review on this wonderful twisted Novel, And by that I meant Very Twisted and morally reprehensible :) SO VILE YET SO GOOD~

I'm not gonna lie but if I'm being honest, just by admitting how much I enjoyed reading this till the very end, I did not just enjoyed but loved it! Expressing it this way so gaily just feels like being guilty to someone who isn't even there but with my religious-conscience why yes... more>> I'm feeling very guilty but so awfully satisfied~ with how tasty and fulfilling the entire story is! I especially loved the brothers yandere-ness~ but most of the time it's a "No" for me, you gotta know just when "one's possessiveness has crossed the line" and the brother most of the time has likely went way too overboard with his possessiveness but all fine-All fine~ it really fits the story well anyways.

If you liked this then I recommend you read this certain book written by Tabitha Suzuma titled; Forbidden ("How can something so wrong feel so right?") <<less
1 Likes · Like Permalink | Report
Debolina5
Debolina5 rated it
November 21, 2020
Status: c17
So far I'm hooked on this story. Yeah I feel bad for the FL but still I can't bring myself to hate the ml. I am liking the male yandere vibes from the ml. I would reccomend everyone to atleast give it a try
1 Likes · Like Permalink | Report
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