Shinmai Maou no Keiyakusha

Description

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“Hey, you said you wanted a little sister, right?”

First year highschool student, Toujo Basara, was suddenly asked this question by his father, and he fell into a state of panic. On top of that, the eccentric father told him that he will be getting remarried. He then departed overseas after bringing Basara two beautiful step-sisters.

But Mio and Maria’s true forms are actually a newbie Demon Lord and a succubus!? Basara was almost forced into a master and servant contract with Mio, but a “reversed” contract was formed by mistake, and Basara is now the master!? Moreover, Basara is being hit by ecchi situations one after another due to the contract, but Mio’s life is being pursued by other demon tribes and hero tribes!!

The most powerful contractor’s desire action drama begins!

Associated Names
One entry per line
Shinmai Maou no Testament
The Testament of Sister New Devil
新妹魔王の契約者
Related Series
N/A
Recommendations
(Um, Sorry) I’ve Been Reincarnated!
10 nen goshi no HikiNiito o Yamete Gaishutsushitara Jitaku goto Isekai ni Ten’ishiteta
A Certain Middle-Aged Man’s VRMMO Activity Log
A Martial Odyssey
A Thought Through Eternity

Latest Release

Date Group Release
10/08/18 zxzxzx v8 afterword
10/08/18 zxzxzx v8c3
08/22/18 zxzxzx v8c2
08/03/18 zxzxzx v8c1
11/03/17 zxzxzx v7 afterword
11/03/17 zxzxzx v7 epilogue
10/23/17 zxzxzx v7c4
05/05/17 zxzxzx v7c3
10/11/16 zxzxzx v7c2
01/21/16 Baka-Tsuki v9 illustrations
06/11/15 Baka-Tsuki v8 illustrations
06/24/16 Baka-Tsuki v7c1 part2-3
04/27/16 Baka-Tsuki v7c1 part1
01/18/16 Baka-Tsuki v7 prologue part4
01/18/16 Baka-Tsuki v7 prologue part3
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5 Reviews sorted by


nobelvampire1071
nobelvampire1071 rated it
May 12, 2016
Status: --
Well if you like shounen and typical MC which is the type to never give up and protect all etc this is for you. MC is strong but not overpowered.
Spoiler

Also there are lot of scenes bordering on hentai. Each girl has their own separate arc where he saves them.

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In general this is a typical shounen slice of life harem anime with your average MC. Well a special point about MC is he is not afraid of killing.
Spoiler

He killed zelrog or some1 I forgot the name by giving him to some other guy to torture and then came to see himself while the other guy killed him. That was fun

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Its fun to read.
8 Likes · Like Permalink | Report
cpkdillon
cpkdillon rated it
July 5, 2017
Status: v9 illustrations
This is a great fan service/action novel and continues to improve as time goes on. But if your not interested in fan service (even if its the most well done I have read) then this is obviously not for you. There is also a good anime adaption.
4 Likes · Like Permalink | Report
mechafanboy
mechafanboy rated it
November 1, 2016
Status: v3
Fanservicey to the point that the novel literally spends a large portion of pages (probably 20% at least per volume) talking about fanservicey nonsense.

There's an underlying plot, but frankly it's annoying wading through the all the nonsensical bs to get to the plot. The rating might be slightly harsh but that's primarily because I personally feel annoyed with how slow the plot progresses not due to additional character building but rather needless s*xual gratification.

We get it, he's surrounded by pretty girls and most of them want to be his slaves.... more>> Stop writing a paragraph about it every chapter and maybe the novel's pacing wouldn't be completely horrible. <<less
2 Likes · Like Permalink | Report
PhantomLily
PhantomLily rated it
June 24, 2016
Status: v7c1
Fantastic novel and plot. Always loved the Angel, Hero, and Demon kind of thing. Nice action between the MC and his girls too ;)
2 Likes · Like Permalink | Report
wargrelet
wargrelet rated it
August 23, 2018
Status: v8c1
well a typical novel story didn't like the plot much only read due to damn hot girls !!!hurrayy!!! To the author and illustrator for that

story was okay but battle parts buzzes me off, battle didn't seemed like a battle they seemed like way to promote

erotic power boost and their school life seemed more realistic than battle part

well anyway I like the protagonist Basara, Mio was very hot girl, Yuuki character was understandable (who would like their childhood crush to be stolen), Kurumi seemed like forced to harem, and Zest... more>> is most adorable of the girls with Chisato being the s*xiest, Maria was the misfit of the bunch

so what you see in story is a plot due to demon lord position just like in politics of our world

a stupid hero clan (and why I call them stupid is because the banishing incident where elder bunch of hero clan didn't even try to use any magic to stop the culprit I mean it is the origin of heroes and they don't even have a powerful guy stationed there in case anything happened, seemed foolish to me)

Author did a fine work for their school and normal life but failed at making the battle seem real or it could have been great (i seriously recommend author to work on making battle feel real) reading the battle the made me feel like I was swallow something that could have been a fine piece of work if some proper ingridients were added

(so for god sake make monologue and dialogue during battle realistic)

so I gave it one star for school life and normal life and one for the girls and if the battle were good I would have given it two more stars (and don't expect a total of five stars from me I mean the protagonist has a harem and he should be kicked there by every girl once for having a harem like how mio kicked in beginning and only once by every girl except Chisato because I don't hate the guy it just soothes my soul that at least he suffered once from each girl except Chisato it just doesn't suit her to do that) <<less
0 Likes · Like Permalink | Report
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