My Sister the Heroine, and I the Villainess


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Upon meeting the girl who would become her adopted younger sister, the duke’s daughter Christina regained memories of her previous life. Through those memories, she learned that her new sister, Mishuli, was the heroine of a certain story. And though the story depicted a Christina who abused her sister, the real Christina turned into a siscon who spoiled Mishuli to no end.

Unfortunately, one day, Christina realized something. The best future for Mishuli depended on that story’s ending. And by following that story, whether it was execution, suicide, or exile, nothing fortunate would await Christina.

Even knowing this, Christina would not waver.

It was all for the sake of her sister.

This is a story about a siscon girl who ignored her own destiny, to bring happiness to her sister.

Associated Names
One entry per line
Heroine na Imouto, Akuyaku Reijo na Watashi
Related Series
I Reincarnated into an Otome Game as a Villainess With Only Destruction Flags… (3)
Gomen ne, Onii-sama (2)
Dare ga Otome Geemu Dato Itta! (1)
I Appear to have been Reincarnated as a Love Interest in an Otome Game (1)
The Elf Is a Freeloader (1)
I Refuse to be a Supporting Character (1)
Recommendation Lists
  1. Novel Completes
  2. The Lighthearted stories
  3. My want-to-read list
  4. Princesses
  5. JP Novels

Latest Release

Date Group Release
02/24/19 Light Novels Translations c115
02/21/19 Light Novels Translations c114
02/16/19 Light Novels Translations c113
02/14/19 Light Novels Translations c112
02/13/19 Light Novels Translations c111
02/10/19 Light Novels Translations c110
02/09/19 Light Novels Translations c109
02/09/19 Light Novels Translations c108
02/08/19 Light Novels Translations c107
02/07/19 Light Novels Translations c106
02/06/19 Light Novels Translations c105
02/05/19 Light Novels Translations c104
02/02/19 Light Novels Translations c103
01/31/19 Light Novels Translations c102
01/31/19 Light Novels Translations c101
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27 Reviews sorted by

Cryarc rated it
November 19, 2016
Status: c114
Overall a nice read even though in the middle of the story it's veering away from the initial premise and kind of lacking direction, fortunately the author is back on track in the last two arc. 70% of the story seems like prologue and introduction of the characters, which is fun on it's own way but feels like a filler after reading to the end. 30% of the last story is the meat of the story as described by the synopsis above.

The MC Christina is a genius that can do... more>> everything perfectly if she wanted to, her actual personality is rather frank and bratty but she can also put up an act to be a lady with perfect ethic and conduct, but she's an airhead when it comes to personal relationship. Mishuly is a cute little sister which supossed to be the main premise of the series but unfortunately she's being sidelined for half of the series.... And Mariywa is a strict tutor who can teach basically anything, she's having the bearing of a last boss lol for Christina lol. <<less
35 Likes · Like Permalink | Report
SourDaiDai rated it
September 9, 2018
Status: c42
I really like this, I mean like holy cheese! I can't wait for the next chapter ˶⚈Ɛ⚈˵ (I am at chapter 42)

I like how she is unique in a way, she isn't really trying to destroy her death flags but finding a way for her sister to be happy! Naww sister love ღゝ◡╹) ノ♡ As an older sister myself I am kinda jelly because I can't really act that way to my sister ╥﹏╥ If one of us does act in a loving manner the other would say "Who... more>> are you?" or "Ewwwww".

Anyways as always, the protagonist is quite dense ain't she? I don't really have much of a problem with it or something I m just waiting for her, I mean how long is it going to take to get to the school? I mean its been 42 chapter and she is like what 4 years before she can get in? (- _-)

In conclusion, this is why I failed all of my essays (And disappoint my Parents) because I can not explain things properly. ¯\_༼ ಥ ‿ ಥ ༽_/¯ <<less
21 Likes · Like Permalink | Report
PhoenixVII rated it
August 23, 2016
Status: c2
Looks good so far. The MC, Christina is reincarnated into a world based on an otome story. She's born into a ducal household with a doting father, a whip-wielding Spartan teacher that must've emerged from the darkest corner in the deepest level of Hell, and an adorable little sister who she'd do anything for. Alas! The character the MC reincarnated into was a villainess in the original story that bullied the little sister and as a result, all the good ends for the little sister are bad ends for Christina... more>> here.

'Bout all I can say so far. MC has her memories and is... apparently a genius who finished reading all the books in the entire ducal library by the time she was 5, but no other OP powers have been revealed so far. Looking forward to more updates! <<less
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LazyDays rated it
August 31, 2018
Status: --
Forget Christina, the true last boss is Mariywa!

That said, Christina is truly an adorable character, with her flamboyant behaviour. Reminding you of Bakarina's charisma and complete disregard for propriety, MC is 1000% committed to loving her sister.
11 Likes · Like Permalink | Report
YoriMei rated it
January 9, 2019
Status: c115
A lovely read, the beginning is chocked full of fluffy shenanigans of Chris and the crew as children. If you enjoy slice of life stories with a hint of sister complex, you'll enjoy the beginning. If not, almost every chapter until maybe chapter 78 or so is gonna be a power battle to slug through. I will say though, once you hit chapter 80, the story ramps up incessantly; and the chapter where her teacher tells her to "love your fate" is a cold and interesting one. However the ending... more>> falls a little flat, and the resolution of the conflict is very anticlimactic, part of it even happening off screen.

Overall, this story falls in the line of those "Bakarina"esque stories, a lovely but quite oblivious protagonist who tries to become a villainess (although this one tries to throw herself into the bad end) and doesn't quite realize she's too loved to achieve her goal. It's a good read, although the actual plot doesn't pick up until literally, near the end. <<less
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Wry Warudo
Wry Warudo rated it
February 24, 2019
Status: c115
Pretty good initially and had set an interesting premise with fun characters and plotlines with great potential, but never really developed much beyond that. A lot of the significant character development in the characters happens off-screen, and ... more>>

the story pretty much went downhill after the time skip. New characters were introduced without much characterisation or development to them, and the climax felt rushed and lacklustre; almost as if the author was just trying to end the story. The main romance felt forced, and felt like it was just there for the sake of having a male romantic lead and an easy way for the author to write themself out of one of the main conflicts in the story.

Overall, a story that had potential but never really followed through. <<less
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TheFakeGentleman rated it
October 1, 2017
Status: --
A light hearted slice of life story, the characters are intresting (and cute), but also feel real, from their actions to their way of speech.

The story isn't anything incredible, but as we're not given many clues, it's difficult to see plotwists coming or even what's going to happen or how a certain situation is going to end.

As for the translation, there are a few differences since at the start the translators changed two times, but there are only 2-3 not so impportant differences.

Since I'm too lazy to write more I'll... more>> just say this: read it, you won't regret doing so (づ⇀ᴥ↼) づ! <<less
7 Likes · Like Permalink | Report
May 16, 2016
Status: c1
Too early to make a definitive review, but the premise is great and I like the characters so far. No sign of the main plot so far, its just an introduction to the sisters and the MC's tutor apparently. Well, either way, looking forward to future updates.
6 Likes · Like Permalink | Report
Renaxan rated it
May 6, 2019
Status: Completed
This novel so fluffy yet amazing among those otome reincarnation novel.

Story is about MC who reincarnated as older sister of heroine, which is his adopted little sister. Though she know would doomed, she's keep adore his lil sis until both of them become severe siscon.

The character is awesome. Surfania who is MC forced-friend (?), charles who is male lead who doesnt want lost toward MC lil sis, and miss mariwa who handle all MC act and even the MC who act like self proclaimed genius. Those character make the story... more>> amusing and doesnt feel boring at all.

Only my complaint is the story end feel so rushed, with lack of explanation and anticlimatic and awful pace. However the extra chapter (after story) make me satisfied.

Overall I would recommend this story to anyone who like otome reincarnation genre, especially similiar with bakarina stuff. 4/5 because the ending only. <<less
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kurousagi4242 rated it
February 27, 2019
Status: c115
Most of this novel is build up and when we got to the final stretch tears were in my eyes ready to fall or were already falling. I was waiting for it. The tension, the climax, the big fight, and then the resolution. However, it is to my disappointment none of this happened. The story glossed over many things and in the end, it was rushed like the author was just writing it to finish with no real intention of clearing many things up.

... more>>

Things I desperately wanted like the sisters confronting their dad or the reconciliation with the friends through tension was all brushed off in two or three sentences. The 'solution' to their problem seemed kinda half-hearted as well.


Although it has its faults it does have its good points as well. One such thing is how Chris, despite remembering her past life, stayed herself just with a little extra knowledge. It is quite a short read and can be enjoyable if you ignore certain plot holes. <<less
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bosycatx7 rated it
February 22, 2019
Status: c114
The idea of the story and also all the characters including the MC was fun in the beginning only. The author didn't try to develop the story at all nether its characters. The same concept in all the story arc, and even when the MC tried to change she will came back to square one.

If you want a funny story about a siscon MC you may like it because this what this novel about, nothing more (i.e. Even the romance part does not exist) .
4 Likes · Like Permalink | Report
fireutsie rated it
February 14, 2019
Status: Completed
This story feels inconsistent.

More detailed thoughts but contains major spoilers about the entire story:
... more>>

First arc is how Chris (the female mc) meets her sister and dotes on her. This is fine and all just like the summary portrays.

Then comes the 2nd arc of Chris falling in love with the 3rd prince and her literally taking 2 years to come in terms with her feelings and express it well. Like what? Completely not in sync with how her character was portrayed at first.

Then comes the intermission of her and her "friends".

And finally there is the 4th arc from chapter 80 on. Where Chris decides to play the villain for the sake of her sister only to reconcile with her sister who sees through the scheme and manipulated everyone in order to make up with Chris.

At this point I was very confused. What about all those future snippets of her becoming the real villain. What about this entire overthrow the nobility thing that gets mentioned? Is this even the world of the Otome game? And above all, why is Chris still acting like a kid even though she has the memories of her previous life and lived so long in this life? It makes no sense.

Her sister, who was bullied according to Chris' memory, isn't meek at all. She is a yandere with some very high scheming skills like her mother. Whom we also know next to nothing about but keeps being mentioned as a dangerous person who can manipulate everyone around her and trying to cause a revolution.

At this point I had no idea what is even going on anymore or where the story is headed. Was it supposed to be a tragedy like a certain other brocon story or is it just a story about a foolish girl (Chris) who tries to make her sister, who actually needs no protecting but only cares about having Chris by her side, happy?

And then out of nowhere, the story ended after they had made up. All these loose ends and plotholes left a very unsatisfying ending.

In the end it was a happy ending for the MC, as she apparently became pregnant and bore a son with the man (2nd prince) whom she loved. This ending is fine, but it's not what the novel was implying at the start?

Edit: It ended just like that? All that foreshadowing, all these other loose ends... Wth, the ending is so rushed. I'm not even going to recommend this anymore. <<less
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Shio rated it
August 26, 2018
Status: c27
It's not that bad.

Usually I hate stories that glorify one character since it's exhausting to read "Kyaa XXX is so cuteeee~" 100x times.

Now, in this story the MC do adore her little sister, and the cursed sentence written above do appear a lot, but it still does have something else going on. There's doubt on MC side whether she should continue to spoil her sister or if she should follow the story to give the lil sis "proper happy ending", which makes me anticipate what will happen next.

I do hope... more>> there will be more character and for the story to not always revolve around the MC, but well. You know what to expect from the story from the summary. Just don't hope for anything too deep <<less
4 Likes · Like Permalink | Report
Nana (ノ◕ヮ◕)ノ*:・゚✧
Nana (ノ◕ヮ◕)ノ*:・゚✧ rated it
November 28, 2016
Status: c5
Slightly dense MC that gives fuwa-fuwa feeling, a doting father and adorable younger sister. Recommended for those sweetness-seeking.
4 Likes · Like Permalink | Report
xtostos rated it
June 18, 2019
Status: c115
The main character (the black haired one on the picture) is awesome and has quite a number of layers to her characterization. She makes up for the complete lack of character depth of all the other characters during the first half of the story.

In the latter half, unfortunately, she gets completely overshadowed by the side characters story-wise, exposing the utter lack of strengths of this story.

I recommend the first half, as Chris is very enjoyable to follow. Keep in mind that she will be made a fool for the latter... more>> half, though, which felt really forced and lackluster. Resolution exists but is disappointing in many aspects. All other characters remain shallow and hollow, except perhaps the 'last boss'. <<less
3 Likes · Like Permalink | Report
AriettaPen rated it
November 18, 2018
Status: c70
This story definitely brings a smile to my face. The characters are charming, even though they lack a bit of intelligence. The protagonist isn't to the extreme of Bakarina, as she can handle herself in high society. The progress is a bit slow though..
3 Likes · Like Permalink | Report
AnotherBoredPerson rated it
May 10, 2020
Status: Completed
The MC is unique in her own way. She really loves her sister. Note that!! And the sister is more maniac towards MC lol. The sisterhood really satisfying.

This novel is about sisters. So the romance plot is very tinyyy. This is not for romance read.

This novel is very sweet and full of heartwarming scenes. My heart felt warm when I read the sweet moments.

... more>>

BUT!! I really didn't expect that the backstory why MC always called herself a GENIUS is very tear jerking!!! I literally CRIED when read that... Ugh, who slice onions in front of my eyes?!


The TWIST is MC's sister.


What's her real identity. Whose her mother. How's her real personality.


Actually, I didn't really like the academy arc. I even mostly skip the chapter in that arc. I think... It's not really affected the whole story? And the academy arc make the story has plot holes. I think academy arc is unnecessary... The end of academy arc is they all reconciled... Like, , HELL!! Why they even circling in this mess?

So, aside for academy arc, I like the whole story. Oh, and OTOME GAME THING, I also think it's unimportant for the whole story. MC's knowledge is very narrow if she really know the story of the otome game. Isn't she should've more smart and more knowledgeable if she really know the story? Whatever. I just ignore that plotholes too. Even w/o otome game thing, this story should've already interesting.

Well, all of that just my own opinion. I still like this story even with plothole, but this is not my favorite novel. Just one that I read when I bored. Recommended for readers that want sweet story between sister without shoujo AI. <<less
2 Likes · Like Permalink | Report
rebpanda rated it
September 22, 2019
Status: c115
This series had a strong start but seemed rushed at the end. The earlier part of the story takes up most of the chapters with the latter half taking very few. There's no description of how the final conflict is actually resolved either. It's pretty unsatisfying in that respect. I'd give a 5 for the earlier chapters and a 2 for the later ones, but since the later ones are proportionately few, a 4 it is.

Basically, prepare to be disappointed by the incredibly rushed ending (gives the feeling that the... more>> series was axed or the author just wanted to stop), but the earlier part is pretty nice. <<less
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Yume. rated it
September 19, 2019
Status: Completed
Tags that should be included but for some reason keep getting removed: Incest, Yuri.

Reasons in the spoiler:

... more>>

Her yandere adopted sister "heroine" ends up living with her and basically marrying her alongside the sister-heroine's half brother who's personality is pretty similar to his sisters. (They mirror each others actions to solicit affection from the MC even after she marries.)


I find this novel to be very fluffy and fun with some dark points throughout and the change in personality of the characters due to the actions of our funnily manipulative MC which always ends up coming back to her in some way or another just makes it all the more enjoyable. (Only negative point for me is that due to the way she interacts with the love interests in this novel when she's still a child it gives off some severe "grooming" vibes even though she never intended it that way as she's a typical dense MC, and it's actually severe to the point that:

at LEAST two characters in the story would most likely kill themselves with the possibility of killing the MC too if they were not able to be in contact with her any longer as they have grown dependent on her to a ridiculous scale.

) <<less
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Cibear rated it
September 14, 2019
Status: c115
I am disappointed. I don't understand why people liked the sisters so much or said the story was fluffy. Most of the side characters were far better than the main characters.

It just seems like a story about a narcissistic sis-con who couldn't use the intellect she was so proud of. I didn't understand or care for the relationship between most of the characters because they were shallow and inconsistent.

The story seemed like it would be great but it didn't follow through. It was rushed and kept veering off plot constantly.... more>> All the interesting things were completely skipped over. The whole point of the story was handled without any explanation whatsoever after the last chapter. We literally didn't know anything until the epilogue which didn't clear up any questions. I thought I would like it if I kept reading but I just wish I hadn't wasted my time.

This could have been implemented far better and had better characters. It seems like the author got bored and wanted to be done with the story. And the whole sis-con thing was completely overdone. <<less
2 Likes · Like Permalink | Report
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