Nobunaga’s Imouto is My Wife


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The male student, Fukai Nagamasa, ignores his studies for college entrance exams in favor of following the path to chuunibyou. As he fainted during night cramming session before the exams, he realized that he was transported to a parallel world as a feudal lord in the Sengoku Era. Not to mention that suddenly, he was marrying the sixth Demon King, Oda Nobunaga’s little sister, the one who was purported to be an unrivaled beauty?

「I’ve decided. I will develop both: this land and the beautiful princess!」

He decides to continue developing his cute, virgin bride night after night, and to try to live an enjoyable life in a harsh world where magic and demonic beasts exist.

Associated Names
One entry per line
Nobunaga no imouto ga ore no yome ~ sengokujidai de tanoshiku ryouchi to tsuma wo kaihatsuusuru houhou ~
Nobunaga’s Younger Sister is My Wife~ How to Enjoy Developing a Territory with my Wife in the Sengoku Period ~
信長の妹が俺の嫁 ~戦国時代で楽しく領地と妻を開発する方法~
Related Series
Genjitsushugi Yuusha no Oukoku Saikenki (2)
Release that Witch (2)
The Elf Is a Freeloader (2)
Akuyaku Reijo Ni Koi Wo Shite (1)
Expecting to Fall into Ruin, I Aim to Become a Blacksmith (1)
Dungeon Defense (1)
Recommendation Lists
  1. R-18 (no yaoi or smut)
  2. Anything I continuously read
  3. Entertaining Isekai
  4. watilike
  5. Erotic

Latest Release

Date Group Release
05/06/21 Mendokusaitls c18 part1
11/13/20 Mendokusaitls c17 part2
09/21/20 Mendokusaitls c17 part1
09/09/20 Mendokusaitls c16 part4
08/18/20 Mendokusaitls c16 part3
08/04/20 Mendokusaitls c16 part2
08/02/20 Mendokusaitls c16 part1
07/19/20 Mendokusaitls c15 part3
07/15/20 Mendokusaitls c15 part2
07/05/20 Mendokusaitls c15 part1
01/17/19 Daoist c15 part1
09/04/18 Daoist c14 part3
07/28/18 Daoist c14 part2
06/05/18 Daoist c14 part1
03/27/18 Daoist c13 part2
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22 Reviews sorted by

japzone rated it
January 25, 2017
Status: c5
This is a really well written story so far, with an interesting take on the "transported to the past" and feudal politics tropes. But after this chapter it's clear that there's going be plenty of NSFW play time. The s*x scenes are pretty detailed, and this latest chapter definitely steps into hardcore territory.

It's already tagged R-18, but just to be clear:

Children should not read this.

But adults will find the scenes to be tasteful for the most part.
54 Likes · Like Permalink | Report
starlor20 rated it
May 26, 2016
Status: c2
Really enjoy the chapters posted so far. I find the story kind of hilarious and I can't wait to see how this story will develop.
15 Likes · Like Permalink | Report
UnknownSaint171 rated it
June 28, 2016
Status: --
Its only been a couple of chapters but this is actually not bad. Considering the Summary you'd certainly think it was your everyday Ero perverted s*x content. But its not really like that.

It honestly feels like we are reading a story about a Husband doing his best to Work and provide for his wife. (Just with descriptive inner details about their s*x life) its not Polygamy either so its not entirely bad. Its well written and MC is very smart. Historical figures are well told.

The story both includes OP Knowledge... more>> Moments as he uses all knowledge to defeat people and includes Ero content. There's like a balance between both of them of good Plot & Sex. If it was purely about s*x and nothing but it, I would had drop this a long time ago. The Romance sucks! Its just a girl who merely obeys and doesn't really say much so far. But she is a good wife in the end. And can't blame her since Old JP Era, women have no rights.

The previous wife left him because they could not be together. Her love was so pure that she left and became a Nun. She will never have s*x because she's loyal to him. Of course it has nothing to do with the current MC so he holds no feeling towards it. That's why Romance sucks.

11 Likes · Like Permalink | Report
ShioCarl rated it
April 16, 2016
Status: --
Ooooh! I love the idea of a modern person being thrown to feudalistic era and I really want to just read on!

I hope for there to be more chapters as it has quite some potential for its base. As far as I’ve read on Chapter 2 I have no idea just what exactly this novel is heading about. It's a WTF twist moment. Nevertheless, kininarimasu (I'm-curious) !

Gambare, translator-san! /3
10 Likes · Like Permalink | Report
neoshadow rated it
January 19, 2017
Status: c4
This is a wonderful novel and for an R-18 shounen-style novel unexpectedly heart warming and funny.

I really hope the translator continues or that this novel is picked up by another group.
9 Likes · Like Permalink | Report
VvAnt rated it
June 12, 2019
Status: c15
Sorry bad English.

A very good novel with many s*x scenes and little action (for now at least).

MC isn't braindead-idiot-beta-Op-MC, and yeah he can kill people.

A good romance too, where MC have many talks (be in bed or no) with his wife. Not some idiot where he only cares to trust HIS 'weapon' then leave for something that takes almost forever.

So why me give a low rate??

Because of harem. What?? Bc of that?? What bad about it??


... more>>

I love harem novel but I too hate it, if that distrupt the story. Okay stop rant! BC his other lover.... are his horse (basically his former body first lover/wife that died) yup! That horse that gangbanged by many other horse that MC call her a b*tch. Maybe she have her reason?? Hmmm... yeah she needs many sperm from horse so she can turn to human. Oh yeah, he will have child later.


Dont mind above, then read this.

So a 3☆ story...... : ( <<less
6 Likes · Like Permalink | Report
Fort de Knox
Fort de Knox rated it
May 18, 2018
Status: c13
The MC is smart and has charisma. Well, at least he is not some transmigrated chuunibyou who says "I want to build harem"

The story is written well too and realistic, I say.

The update is slow, it's been two months and there are no update.

Here is the raw if you want it :
novel18. Syosetu. Com/n4165cv/
6 Likes · Like Permalink | Report
Reindeer rated it
April 11, 2017
Status: c4
I love it, and the ratings are well deserved.

Although I've had not just one of these thrown to the past/isekai MCs, this really hits my soft spot.

I've only read 4 chapters so far, but from what I've seen on chapters 3 and 4, we don't have overly complex side characters, which I really like. It probably won't be mind blowing like Dungeon Defense, but that's that, this is this. I prefer this one, I guess, in terms of genre anyway (like that novel with the Protagonist as his name, I... more>> didn't really like that one). In terms of modern into past technology stuff, Release that Witch will probably be better, but I do admit that the author knows a lot about the time's culture and people.

Although it's a bit boring, but I prefer it this way actually; the romance, I mean. He gets to her on c1, which, for me, saves all the trouble. The harem on A Step into The Past was... I dunno, but I surely didn't like it that much.

There's still not much out yet, the translation speed is like level: Kenkyo Kenjitsu. I hope the translator speeds it up soon, cuz I really want to read more. <<less
6 Likes · Like Permalink | Report
Nabilapanda rated it
December 11, 2019
Status: c43
This is really a good story. The plot is very good, and of course same for romance. But, as I deeply go deeper and support nobunaga sister and nagamasa romance and being overly overwhelmed, the 3rd person appear and nagamasa fell in love with her. OMG !!!!


3rd person

    1. Shes an unlucky girl
    1. Smart
    1. Brave

But, I think many woman in that era have the same fate as her. If he feel sorry for that kind of woman, who of course beautiful too, and fall in love, hes such a jerk !!


Because he didnt easily just accept that 3rd woman and pretend and trying to ignore but in the end confess to her (3rd woman).

Now my feeling is not good huft
5 Likes · Like Permalink | Report
andrewreadnovel rated it
January 7, 2018
Status: c8 part3
So the story follow Nagamasa which was thrown back into Sengoku era of Japan. The MC become one of important feudal lord in that era 1 day before he get married to a beautiful princess. How can he survive is the first question. After all the guy that he replace is a powerful person. But he is able to handle it quite well which will be the minus for me. He doesn't have any experience than suddenly he can replicate that feudal lord?? His goal is to develop both: this... more>> land and the beautiful princess!

But the plus overshadow the minus, the story is rich with Japan history (I like history a lot so this is a big plus). The history seems to be accurate. The story does have R-18 tag, some ero scene but it still have a good plot (His interaction with his wife is fun to read). I don't expect this to turn to harem (Harem rules but not in this kind of story). Great LN to read with great potential.

Lastly his horse is some kind of unicorn like in the picture. <<less
5 Likes · Like Permalink | Report
Need2Bookmark rated it
April 11, 2020
Status: c15 part1
It has a nice balance between plot (MC managing his land) and +18 content. We get a chapter of s*x every few chapters.

The plot is basically 'fake it till you make it'. It's fun to see how a guy who has no idea about ruling as a Daimyo suddenly becomes one.

The s*x scenes are rather tasteful. Super vanilla and heartwarming. I love how shy and modest the wife is, and how gradually she starts losing that innocence. The MC is the dominant one most of the time, albeit there is... more>> one time when she requests his wife to take the lead. Some of the best couple s*x I've ever read.

At the time of writing, there is a hiatus. It's been over 15 months since the last chapter came out. Apparently Daoist (whose translations are really well done, btw) is creating a new website to prevent people from stealing their work. Don't let this discourage you, and give it a shot.

I am full of expectations for this WN. I hope that the +100 chapters that there are in raw do get translated. <<less
4 Likes · Like Permalink | Report
Rustle Eroi
Rustle Eroi rated it
September 17, 2017
Status: c8 part1
I like it so far, the s*x scene was pretty detailed, You can actually have a b*ner for it and its pretty normal.

The world building is there, and I want to see more in the future, although there some aspects that I want to retort, but nevertheless I enjoyed it so who cares I guess.

... more>>

like the MC seems like a PRO at s*x while it his first time, or so I think the author didn't really specified what his virginity status lmao. I interpreted it as being a chuuni, he somewhat research about it and when it comes to the actual s*x he will be calm


P.S Please give me the PoV of the other charas <<less
4 Likes · Like Permalink | Report
SKL rated it
September 17, 2017
Status: c8
Summary :

Man who loves history is transported to the Sengoku Period of Japan and is reincarnated as a feudal lord. He is reincarnated the day before his wedding to a famed princess of unparalleled beauty. He makes it his mission to develop his land and train his new wife (in erot*c ways).

This novel is fantastic. Although it is definitely an ero novel, so far, is has been able to balance the elements of ero and political well. The translation is good, and it seems that things are historically accurate. It's... more>> an ero novel at heart, but has a great storyline that makes the interludes between ero scenes also very enjoyable. <<less
4 Likes · Like Permalink | Report
Adastria Lillith
elhessan rated it
September 2, 2017
Status: c6
"So far, so good" -Guards from TES IV.

Well, that phrase represents what I feel towards the novel. Good world building, lots of expectation for the story development... So yeah, so far, so good...

Update - yup this is definitely an ero novel. But it's not all about s*x and stuff, well at least not so far. This is ero novel filled with story, not just plot but real story and potential. Everything was described in detail, I like that. It seems that thr author values world building and detailed stuff, yea... more>> including the ero stuff. Hope it will go like this in the future too <<less
4 Likes · Like Permalink | Report
eiaaa rated it
June 10, 2020
Status: c15 part1
Hopefully, it will be pick up someday, a really interesting story. I don't know why it's dropped either.
3 Likes · Like Permalink | Report
girntaro rated it
December 16, 2017
Status: c11 part2
Whoa just the premise of transported to the past already got me, eventhough it got a little twist like monster and magic but so far its not changing the story in ridiculous way, The MC quite good at thinking, have no cheat ability at all and only use his knowledge of his past life, so far he is not havent done much reform because most of the time he is traing his wife lol

The s*x is quite good I think, never read ero novel before but I can feel the... more>> explanation which is detailed but not overly dramatic and make my imagination lively in the process

Hope to see more and see how he manage to change the course of history since his future is bleak if we look at his OTL counterpart

Damn I need more historical novel <<less
3 Likes · Like Permalink | Report
admira rated it
November 28, 2017
Status: c11 part2
Make no mistake, this is a R-18 story. But it also has a plot, and said plot is not gathering a harem.

A history nut travels back in time to become a historical figure shortly before his wedding. So far, the actual plot has been about developing his territory and deepening his relationship with his new wife, Oichi. He doesn't inherit his body's memories, so he has to rely on his own knowledge of the period to make do.

About half of the chapters are devoted to the R-18 parts with Oichi.... more>> So no, this isn't a story for minors; the s*x scenes are quite explicit. They're easy enough to skip if you're not in the mood, but they're still half of the reading material. No signs of a harem as of chapter 11.

All in all, this is one of those transmigration stories where the transmigration element actually feels meaningful. The plot is good enough to work without the R-18, and the female lead has more depth than the typical R-18 gal (ie we'd notice if the author suddenly swapped her out for a different female). <<less
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TheWorldICall rated it
August 2, 2020
Status: c1
There are two types of people that read this novel. First one being the type that reads for its fantastic world building. The second being people that only read for the erot*c s*x scenes. I find myself somewhere between the middle of the two. However, whichever you came here for you won’t be disappointed. The novel is very similar to Genjitsushugi Yuusha no Oukoku Saikenki for its amazing world building and the erot*c scenes are very passionate if I do say so myself.

The MC is a Tsukkomi MC so that’s... more>> always a plus for me. The female lead also gets good character development. Nevertheless decent novel I recommend it. <<less
1 Likes · Like Permalink | Report
Forromir rated it
March 8, 2020
Status: c15
The MC isn't that realistic, he's automatically charismatic and he has the background of loving Japanese history using the excuse of it being the result of his 8th grader syndrome.

... more>>

Also, although the guy that took care of his horse also went and stole the sword and gave it to the MC, and was killed for it.. I don't see how the MC cares as much as he does. If maybe it explained in the following battle that he was only able to survive because of the sword I'd understand his amount of sympathy. But right now it just feels overboard.

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yoga1102 rated it
August 5, 2020
Status: c15
As said by @Japzone, the novel is quite tasteful indeed hahahaha.

I'm going in tought this is merely R18 novel with shallow lovescene like other novel usually, but left in surprise with how quite vannila it is sometime and surprisingly "cute" interaction between Nagamasa (MC) and Oichi.
It is also in my strikezone and helped by my experience and preference which I'm exposed extensively by romantization of Nagamasa and Oichi by Samurai Warriors and Sengoku Basara game since I'm kid (mid 2000).

The contradiction of this LN is well done hahaha. The... more>> eroticism aka lovescene or h-scene is done quite good by authors and the Translator (s) and yet the interraction and play by play of MC outside the H-Scene is very cute and lightheart warm lol. <<less
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