Common Sense of a Duke’s Daughter


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When a young woman is killed in a traffic accident on her way home from work at a tax bureau, she suddenly finds herself transported to the world of the otome game she was playing the night before – but instead of the heroine, she’s been reincarnated as the bad guy! Using her knowledge of the game, “Iris” manages to avert personal disaster and decides to rebuild her life with her modern-day economic know-how. This is one mean girl who isn’t going to let her perceived reputation stop her from being a heroine!

Associated Names
One entry per line
Koushaku Reijou no Tashinami
Related Series
The Manual of a Duke’s Daughter (Spin-Off)
Common Sense of a Warrior (Prequel)
Common Sense of a Duke’s Daughter (LN) (Light Novel)
Release that Witch (15)
Genjitsushugi Yuusha no Oukoku Saikenki (10)
Tensei Oujo wa Kyou mo Hata o Tatakioru (8)
Haunted Duke’s Daughter (7)
I Reincarnated as a Noble Girl Villainess But Why Did It Turn Out This Way? (7)
Okoborehime to Entaku no Kishi (5)

Latest Release

Date Group Release
07/17/19 Asian Hobbyist c208
07/14/19 Asian Hobbyist c207
06/21/19 djurasico c247
06/15/19 djurasico c246
06/15/19 djurasico c245
06/12/19 Asian Hobbyist c206
06/10/19 Asian Hobbyist c205
06/07/19 Asian Hobbyist c204
06/06/19 djurasico c244
06/04/19 Asian Hobbyist c203
05/31/19 djurasico c243
05/29/19 djurasico c242
05/28/19 Asian Hobbyist c202
05/26/19 djurasico c241
05/26/19 djurasico c240
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127 Reviews sorted by

Auree rated it
July 11, 2019
Status: c247
The story centers around politics, commerce, and a small dose of romance, mixed with schemes and some military.

I really love the MC, Iris, despite that I don't really like the politics and military explanations in the book. Don't get me wrong, I LOVE politics and military, but just feel like in CSDD, they have been over-simplified or not properly illustrated sometimes.

Elegant, intelligent, capable, workaholic, enduring, and mentally tough...I just love her, especially in the stage where the story happens, that women don't have a place in the ruling... more>> class.
There are a few logical lapses here and there, but overall they are not too bad.

But there is just this one BIG problem with the battle over the throne between the two princes. Just so you know, this is a huge part of the whole story, and I think the author does not properly make good sense of it. Here is why:


It is just too obvious from the very beginning that the first prince is gonna win no matter what. The first prince has had the backing of military the whole time. Moreover, he has tight connections with the knight corps, which serves as guards for the royals, in other words, the perfect pawns for a coup in the worst scenario. Other than that, he earned support from the church and the Armenia family (the MC's family) in the early stages; this means that his rule will be legitimate as it is backed up by the church, and his control over the nobles will be tight, as the prime minister's family is on his side. Honestly, the second prince never had a chance; and that political battle over the throne, to me, doesn't really have much intensity.



Apparently, the MC's side has been too powerful from the very beginning; and yet the methods adopted by the second prince faction (the villains), though despicable, are just too stupid. The author tried hard to put MC in disadvantage in the beginning, but it obviously does not make sense, given her family's overwhelming political, financial, and military influence.

Another problem is that the author does not actually put too much thought in to the balance between the two prince. I get it that the second prince faction is full of greedy, lazy, incompetent nobles, and the first prince side's are all capable, and that it is important to leave such strong impression to us readers. But at least you have to save some big shots for the the second prince, just to make it seem more balanced. The pope who favors the second prince, due to his stupidity, got knocked out of the picture early. And then... NOBODY else in his faction has any administrative power in the capital. HOW does he actually come on top when the most he can do is just gossiping? I kept asking myself who is actually calling shots in the capital the whole time. The Dowager Queen is said to have the power only second to the King, and she favors the first prince, but other than giving a feel helping hands to Iris... she does NOTHING.


But still, I like the tension between Iris and Yuri, and how Iris responds each time Yuri/Ed/Queen Ellia picks on her.


I literally cheered when Yuri cracks in jail.

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July 4, 2019
Status: c247
God I love this novel, I love this kind of novel that goes a lot into commerce or politics
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sleepchaser rated it
June 7, 2019
Status: --
I remember stumbling upon this two years ago. The story and execution were interesting. I really liked the main character Iris and I thought she was very mature in how she dealt with her problems. It was my first time reading a "villainess noble girl" novel, so needless to say I was hooked. The only problem was that multiple groups picked this project up, so it was hard to follow the releases sometimes. Then for a while a certain group became the only group translating it and I have to... more>> tell you, the translations were all over the place. I couldn't go one paragraph without seeing a grammar mistake or just poor sentence structure/phrasing. Granted, since they were the only ones translating the novel at that time, I tried to power through the chapters, but in the end I stopped reading.

It looks like the translations have improved so I might check the novel again. <<less
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aienmoon rated it
May 29, 2019
Status: Completed
Story has a good flow and plot. Although I dont really like politics so I skipped a lot of parts I can still say that it is written well. If you want fluffy romantic scenes, there's not much of it here. Revenge part is not great but good enough. Overall a good read.

though I was not happy that the 2nd prince died. I wanted him to suffer more! &Gt;: (

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BlackBook rated it
March 26, 2019
Status: --
The story it self is pretty fine but I wouldn't recommend this for those who are pricky bout the translation. If you do want to read it, the translations done till 189 are pretty solid.

If you don't put much focus on the trans then it might be a story for you to read if you like this kind of story, although the villainess is missing the 'villain' part and most focus are on 'country development' by the MC.

For those who missed the description above and hoped for fast paced romance... more>> plot. Guys this isn't it. <<less
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shinidoshi rated it
March 12, 2019
Status: c166
The MC starts off as a Mary Sue for like 50 chapters, only because she has revolutionary knowledge from her previous life. After the Queen Dowager restores her status in society, our MC is harassed with conspiracies after conspiracies by the Second Prince Faction (belligerents include the Royal Concubine, the Otome Game's protagonist ... more>>

who turns out to be a spy from an enemy country

and a Marquis traitor). Each time the MC faces oppression from SPF, she peels away her Mary Sue aura and becomes more pragmatic. Her character growth is especially stimulated by the general toxicity of noble society, and so she has to make measures beyond cause and effect.

Edit: Earlier I made a harsh opinion on the translations, however, I recently learned what MTL and I have a feeling it was used in some of the chapters. Thankfully the comment section is full of people who are either good at interpreting MTL, or memorized the story so far; even the grammar police are a godsend. <<less
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bosycatx7 rated it
February 14, 2019
Status: c236
The story was great till the after appeared of the 1st prince, the drama too much for me to handle & the direction of the story doesn't make sense to me.

... more>>

Even after all the great things she did for her territory she can't get engaged to the 1st prince since she was engaged to the 2nd prince long time ago. If her brother who was his friend can become a right man for the 1st prince and a future prime minister with small achievement comparing to her whose catch the 1st prince section eyes to get her support and the threatening of the 2nd queen, so why can't she the 1st bride to be?!. Also the idea that she do all the great thing for her territory only and she think all her people are the territory people, why can't she be queen that work for all the kingdom people with the her best pair the 1st prince? Or all the queen job is to be a wife for the king and attending tea parties. The author went to put the idea of changing the county politics but this idea is confusing if there no problem for women to work as minister and ruler, why the chapter foe the princess feel like she in a hopeless situation to work for this country. Lastly the drama of the new enemy is boring for me to read.

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January 1, 2019
Status: c234
Not at all like a typical reincarnated villainous story. The story starts after the premise of the game. Characters are fleshed out and each clearly have their own weaknesses and strengths. The mc's ideas and improvements for her territory are intricate and interesting to read.

A lot of the mc's reincarnated knowledge that she uses to make the product line for her company is totally unrealistic. Translations for Common Sense of a Duke's Daughter are inconsistent and there are many duplicated chapters translated by different people since so many sites have... more>> picked up and dropped this story.

All in all I really love this story (even though I get frustrated over all the sites and difficulty I've had to just read this) <<less
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alby94 rated it
December 27, 2018
Status: c233
I really liked this one, at first I'm not gonna lie I got a bit confused but then I thought this story is great, the fact iris don't know the what's gonna happen next since she reincarnated at the last part she knew of the game is interesting. Also I read some comments saying this was bad and she was overpowered, I don't think that's the case, just because her job before was doing others taxes don't say that's all she knew it's like saying I'm a waitress and... more>> that's all I know, we all got hobbies and iris discovering ways to make chocolate I learned chocolate comes from cacao in 4th grade, is she over powered by knowing what I knew in 4th grade? Um no. It's good that she is smart and some said she had no enemies they all loved her, not really, her enemies were big and did lots of harm but by her using her head made it pass through it. She also falls for someone she can't have because of their positions, and some big enemy appeared that says he loves her but he seems like a sadistic Prince to me who wants all her love ones dead and wants to be all she has, idk how she gonna get through This Prince from acacia since I'm only on chapter 233 but its getting better and more difficult for iris. This is a historical, economical, romance and political story if you don't like that, then don't read, dont ever give a bad review to something you read only a couple chapters to, and most important I believe the translators do a great job, my favorite one is Djurassico idk if I spelled it right but he or she is really good. <<less
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Tabbigans rated it
June 26, 2018
Status: c120
Such an interesting story. I love seeing her grow so much in a short amount of time. Now, just waiting on her love story with Dean to really start and on everyone to find out about the chosen princess' REAL personality.
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popdi rated it
May 14, 2018
Status: --
It has an interesting story, the girl reincarnated and merged within a noble girl called Iris who is an otome villainess, she is humiliated in front of others for the bad things that she did and she "struggles" because she is a duke's daughter so she brought shame to her family and she loses her standing in the noble society. She uses her memory from her previous life, creates a company etc etc... So far it's good.

The problem is that there are a lot of things that are hard to... more>> understand and there are some inconsistencies. The first thing is how can people still support her and sympathize with her? well, I understood it after 40+ chapters after someone in the novel explained so all is good but still, I was a bit lost at the beginning.

The second thing is that at some point in time, I was like "what the heck was her job in her previous life?" although she presented her job at the beginning, sometimes, you can be dubious if she didn't have 4 or 5 jobs at the same time... while I can understand that some people DO make their own conditionner/shampooing, and some people DO make their own chocolates (so it makes some sense that she can introduce all these and start a business with these things), but how can she know how to deal with territory management or how a bank works? How can she know about laws, reforms and all, and convince people in such a short time to change their laws? And because she knows aaaaall these, she accomplishes things too easily. Well this is a problem that is in most of the isekai novel involving politics/economy so it's not like it's new but still... And most importantly, how come she has the time to deal with all of them at the same time?? I mean she is doing too many things, it's hard to understand how she manages her time...

The last and the most important problem is that the people against her always have bad personnalities or are just foolish, and the fact that Iris was really kind even before they "merged"... it's kind of like the roles are reversed... Iris is supposed to be the villainess but she has an unexpectedly good heart. Her ex-fiance is unexpectedly foolish, and has such a big pride and such a bad personnality, even though he is supposed to be an ideal prince in the game.

Yuri who was the female protagonnist in the game being such a manipulator and such a b*tch


Nonetheless, even with these problems, it's a good novel: the plots are interesting, the pace is good and the fact that they skip some days sometimes don't let you feel bored.

And it feels really good when you see the guys regretting how they humiliated Iris :D

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December 31, 2017
Status: c84
A bit different from your common isekai novels. I'll try to refrain from spoilers.

The story is pretty good, the MC slowly develops her fief using her previous life's knowledge as a tax accountant. She pushes reforms aggressively and the fief develops smoothly. There are frequent time skips as well; reducing detail but progresses the story well, over matters deemed trivial.

The story does lack a concrete villain even up to the chapter I am currently at. The villain of the MC is depicted as a certain group, a country's actions, and... more>> other nobles so it is hard to say who is the main antagonist. They use the lack of clarity regarding this to effectively etch out parts of the story.

The side characters do not have much depth in early volumes, they are usually loyal to the MC and early on they usually are in shock and awe of MC. Later on, you'll see more excerpts and chapters about side characters POV and their development.

Essentially the biggest flaw in the novel for me is the translation. Japtem released clear translations while the next few translation teams did their best there were definitely names of characters, tenses, and clarity lost or mixed up. Also at the time of reading this, shirotranslations is down so it was difficult to hunt down those chapters unless you go to an aggregate site or access it through google cache.

Personally, I hope new readers and old alike read this novel to its current chapter. It is definitely a good read if you don't standardize your ideas on how novels are written. <<less
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Shmrk rated it
December 10, 2017
Status: c84
Incredibly interesting, barely any filler like in a lot of novels and the tedious nature of most political/business novels (taking 50 chaps to start the business or 30 just to get on their feet) is completely eliminated with skillful (imo) use of time skips. The synopsis is a little misleading however as the premise that this is in an "Otome game world" is only relevant for the first 3-5 chaps (I have read up to 84 so not sure if it will resurface later) however this is an incredible read... more>> if you like an MC who is truly smart and adept rather than the author simply stating that they are. The political and financial moves the MC makes are well thought out and logical, truly a work deserving of 5 stars. <<less
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duranathos1962 rated it
November 5, 2017
Status: v2c51
I like the story, its kinda fast pacing story. It was translated by JAPTEM.

I dunno what happen, but there's no more updated translation in this team.

I found this novel yesterday and I finished reading it today morning. So you can say Im a BINGE reader.

... more>> The plot is okay, very readable how it was translated. Im just wondering how the MC, switched in the story. Because there's no story about that details.

The length of the story per chapter was short for me. So the more details, let say it was remove. But still you can imagine how the story goes.

And also, since it was a fast pacing story I just find it Lacking in Surprise Area, yes the MC she's making her fief revolutionarizing but thats I want to say its so fast.. Hehehe.

But still I like it.

I just hope there's a more in deep tackle of the characters in this story.

Because I finished reading what the JAPTEM TEAM translated yo v1-v2-c51. As for now, its my opinion..

Now let me see the other translators did on this Story. <<less
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B2j rated it
August 8, 2017
Status: c80
Iris is a hardworking woman. Even so, she is soft hearted and very kind. She's the epitome of a saint that works hard towards an ideal goal. She has many supporters who stands up for her at all times. She is a queen fit to lead.

This novel is very different from those other transmigration novels. First of all, she was right at her bad end when she transmigrated. She also has her memories and it's more like her personalities mashed together than one taking over the other. She has a... more>> great deal of resolve and knowledge. Although, regrettably, that knowledge is somewhat excessive deus ex machina for supposedly normal salary woman who works with taxes.

In the beginning, there's some info dumps on character introductions and setting so it's a little confusing. Even so, it's enjoyable seeing her manage her fief. The real thing basically starts when she made her re-debut in noble society after her bad ending. It basically is the internal strife between the princes. One of things I want the novel to tone down is the switch in perspectives. Although it is helpful and interesting, doing it too much is also very messy and hard to understand. The romance is cute but is not very developed as it is somewhat one sided on the ML side currently. Although I would love for them to get together but the ML is hesitant to chase after Iris so I don't get much hopes of improvements right now.

Currently, in the story, there's not much complex plot lines happening so there is much to be anticipated. I hopes it continues to dive deeper into the main conflict and drama. The characters are somewhat bland and not much character developments but then again, we haven't gotten to know much about the characters yet. Just the outside descriptions currently appear. Even so, they are pretty likable. Overall, it's certainly interesting but just waiting for it to get more in depth and angsty. 4/5. <<less
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January 21, 2017
Status: c51
Shoujo is the tag, but do not get it wrong that shoujo are full of romance inside of it. Nope, this one had not, or at least yet. It was all pure business, how to get back up from being shunned by the society, but no hardships whatsoever her, she was away from those who could mock her afterall. The business part was nice, but as expected of shoujo, there was not any detail of "building up to success", the MC just implemented her idea then "skip!" it was a... more>> great success without any problem, this story is for teen girl, so no to heavy stuffs. There were also changes of PoV which was nice too. So far no hardships, or maybe conflict, the main problem was still a mystery, such as "the original main heroine" what was up with her butt!? <<less
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September 17, 2016
Status: c49
My absolute favorite reincarnation into an otome genre novel. Heroine has past knowledge which makes her decision making processes (and her overworking) seem believable, but there's still enough mystery to make it intriguing.
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Sra Victi
Sra Victi rated it
September 5, 2016
Status: c48
I first found this story while reading the manga adapted form of it. Thinking nothing of it besides how beautiful the art is, I got drawn in by the plot and how she handled things that were thrown at her. Now that it got me hooked, I went ahead and found the novel and read the entire story up to where I had to wait for the next chapter. She's a female lead that I love (strong, capable, witty, beautiful, gives no fudge about the people who threw her away)... more>> and wish more authors would create *COUGH SHOUJO AUTHORS COUGH* and you can say this novel is what got me hooked into reading more light novels than manga nowadays. I hope she gets her happy ending. TL;DR: Came for the art, stayed for the plot. <<less
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SilverBullet888 rated it
August 15, 2016
Status: c46
I really like this. Although it follows a common trend of reincarnated-into-an-otome-game-as-the-rival, It's unique in how they have it set after the "game" is over, or the bad-end flag is up. The character is also relatable and likable, but not too OP or pulling a reverse harem situation. Although some elements are a bit generic, it's still a solid, well rounded novel that many will enjoy. The pacing is a bit fast in the beginning. Compared to the manga, it skips some parts, but it's still good.
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Asbolus rated it
August 5, 2016
Status: --
Love this series!!!

A mix of otome game and political dabbling but there is also the deeper element where the prospect of an evil heroine or just a strangely 'empty' one now that the game is over is SUPER EXCITING. Ahhh Oujo-sama, please go on exciting exploits and clash against the prince and his airheaded (or genius-actress) fiancé. Oh and a romance better be raised soon.
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