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Boku wa Imouto ni Koi o Suru  
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From ShoujoMagic:

Yori's attitude has changed. He and his twin sister, Iku, used to be inseparable as children, but lately Yori's been different -- eager to be apart from Iku. Iku worries that he hates her, but the truth is far more scandalous. Now, Yori would risk losing everything to have his little sister. Iku loves her big brother enough that she would never risk losing him, and so she'll do what it takes to keep them together... but Yori doesn't want to have her that way -- as a sister dedicated to her twin. Can Iku ever love Yori not as a brother but as a man?

Boku wa Imouto ni Koiwosuru received the Shogakukan Manga Award for shoujo manga in 2008.


Related Series

Associated Names
僕は妹に恋をする Secret Sweethearts
Boku wa Imouto ni Koi wo Suru
Boku wa Imouto ni Koi wo Suru - Secret Sweethearts
I Love My Little Sister
I Love My Little Sister - Secret Sweethearts
Lazos Prohibidos (Spanish)
Secret Sweethearts (French)

Groups Scanlating
Divine Sanctuary
JShoujo Scans
Manga Abyss
Newchie Scans

Latest Release(s)
v.10 c.58 + Extras (end) by JShoujo Scans (84d ago)
v.10 c.57 by JShoujo Scans (99d ago)
v.10 c.54-56 by JShoujo Scans (140d ago)
Search for all releases of this series

Status in Country of Origin
10 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter
Ends at Vol 3, Chap 16

User Reviews

2 topics, 14 posts
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User Rating
Average: 6.8 / 10.0 (364 votes)
Bayesian Average: 6.83 / 10.0
 22% (81 votes)
 11% (40 votes)
 16% (59 votes)
 15% (54 votes)
 10% (35 votes)
 6% (23 votes)
 3% (10 votes)
 3% (11 votes)
 2% (8 votes)
 12% (43 votes)

Last Updated
August 11th 2014, 12:06am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Sho-Comi (Shogakukan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #675 increased(+8)
Monthly Pos #787 increased(+60)
3 Month Pos #722 decreased(-423)
6 Month Pos #289 decreased(-43)

List Stats
On 1170 reading lists
On 626 wish lists
On 332 completed lists
On 191 unfinished lists
On 261 custom lists

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Forum Posts
How is this a spin-off? 549 days, 21 hours, 5 minutes ago
Spoilers Please! 647 days, 18 hours, 9 minutes ago

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User Comments [ Order by usefulness ]

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Cry Cry Cry   
Rating: N/A
by zita3000
April 10th, 2012, 11:42pm
Seriously, that's all Iku does! She cries!
Whether it's about having too much on her phone bill (over $200!) or not being able to hear Yori's voice...she just cries!
I know, this is a shoujo manga, so it's bound to be somewhat cliche, but this just gets ridiculous.
I've never read a manga where the female character was THIS ANNOYING.
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Too annoying to handle   
Rating: 1.0 / 10.0
by Cheribae
February 18th, 2012, 3:01pm
I really wanted to give this manga a chance and read it through till the end because I thought it would be interesting, but.. -___________-" the latest chapter update, chapter 39 just pissed me off so much. Iku's stupidity went beyond comprehension and so did Yori's when he decided to
Spoiler (mouse over to view)
introduce Iku as his girlfriend to his classmates and what not, when he should obviously know what the consequences are when doing that.
I've never read a manga with so many annoyingly stupid characters in my life. I think Aoki's character developments were just terrible. Only Yano was somewhat okay.

The plot is just...I have no idea where it's going now. It seems like Aoki was throwing in as many twists and cliches into this manga to make it interesting, but chapter 39 had too much going on..I don't want to continue reading this manga anymore because of it. I'm surprised I even got so far.

And about the incest, I don't really care because it's just a story. Besides, I don't believe they're siblings at all.

... Last updated on February 18th, 2012, 3:12pm
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Rating: N/A
by alex3510
February 4th, 2012, 6:53am
Okay, this was my first sibling love one, and it is sure as hell my last. I got to Chapter 7 and stopped there. Honestly, I may not have a brother, but this was just ridiculous. Not to mention that the protagonists were absolute idiots, and the brother was a total pervert.
This manga gave me a migraine and a sickened feeling :I
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Rating: 8.0 / 10.0
by born2shop
November 30th, 2011, 1:14pm
After reading the description I thought that I would really like this series. But I find it to be really annoying!! Iku really grinds my gears!! She's stupid and so naive. No wonder Yori had to move away to protect her. Left alone, she'd give away their secret and they'd have been discovered a long time ago. SIGH I mean I do think that she's cute sometimes, but over all I just can't get over how stupid she really is.

But anyway, I jut wanted to voice my frustrations of her. Go ahead and give it a read :-D
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Don't overreact   
Rating: 10.0 / 10.0
by 1122shadows
October 28th, 2011, 5:07pm
It's a good story, one of my favorites but you might have to rethink how you view love. Yori and Iku relationship is a very passionate love, if you can't handle it then don't read it. Also, from a religious view point, if God created the world with Adam and Eve, then He allowed incest when their children "populated" this world. But if you believe in evolution then even monkeys indulge in incest. LOL.

... Last updated on October 28th, 2011, 5:24pm
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Rating: 1.0 / 10.0
by blublaise
September 4th, 2011, 12:30pm
I only found this story because it was one of the recommendations for "Flowers of Evil"...

I did not read it for the art. Not at all. The art is terrible and just plain ugly. It did not fit the plot at all and those chins—*gag*

As for the storyline, I had expected it to be better executed. It's completely unnatural and the pace is just not fitting. The story just jumps into scenarios; it's as if the mangaka thought up of great moments and threw them in without much thought of how it'll turn out. I didn't like it all.

The characters are annoying. They're all so spontaneous that it's unnatural. Also, the twins look nothing alike and their hair and eye color are different from one another. The side characters are cheap. It just added onto to my dislike of the story.

Overall, don't mind if you miss this. I swear, you'd much enjoy "Flowers of Evil" rather than this.
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Disgusting ..!!!!!   
Rating: 1.0 / 10.0
by sara..
April 17th, 2011, 11:35am
this is really creepy and very disgusting .. not only the fact that it's sibling love .. but I don't know..!! it's just disgusting .. every time I see this I would be like ewwwwww .. I dropped this after volume 2
you know I've read sibling's Love manga before before but it wasn't like this !! Egggh

I strongly recommend not to read this .. there is many manga out there deserve your time more then this

... Last updated on January 20th, 2013, 1:00pm
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Rating: 6.0 / 10.0
by workshyslacker
October 19th, 2010, 1:45pm
Spoiler (highlight to view)
... is not the same as "SHE"-LOVER. It's a "see" got that? Right? Ahem...

Apart from that... wierd and creepy and that's nothing against the incest issue because at least Angel Sanctuary was better. And why is the guy such a stalker, and why is she so weaaakkkk?

There's femininity and then there's stupidity...

I don't understand anyone's motivations.
Spoiler (highlight to view)
Yori doesn't even bother to hide the fact that he's sleeping with his sister and spills all to Yano - after that all that angst over hiding his incestuous feelings - those same feelings that drove him to bang his sister's classmate
that I can't sympathise with him at all. And she's so weak and snivelly that I'm not invested in any of the major characters. Nevermind the best friend who's
Spoiler (highlight to view)
trying to steal his girl

Having said that - it was so bad it was good. In a tacky way. I'll give it a 6 because at least I managed to finish all of it.

... Last updated on October 19th, 2010, 1:56pm
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Latest Chapter so far.   
Rating: N/A
by janie0016
August 11th, 2010, 10:13am
Leave it to Yori to find a way to teach that bitch a lesson!
Shit! Reformatting the computer. Wise decision dude!
I really feel like they're not brother and sister in reality though (I know they were said to be twins, but it's a shoujo manga, anything can happen). I think they're actually cousins or something. I'm pretty sure that you can legally marry your cousin in Japan.

Seriously, I was so mad when I was reading the part that they got caught and Yori had to kiss his ex-girlfriend. Then, I was shouting at the top of my lungs... EFFFFFFFFF.

Now, I must say that I am satisfied. There are three volumes left... I'm so excited to actually finish this. Hopefully, they'll scanlate it until the end. love you scanlators <3
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not worth it   
Rating: 2.0 / 10.0
by keristars
April 5th, 2010, 8:34pm
The story is pretty cliche and hits all the stops for overdramatic shoujo romance, with the main "feature" being an incest theme to set it apart. But what really bothered me was that there was a lot of really dark sorts of things going on related to the incest without mention. I don't mind (you could even say "like") incest themed stories when the incest is actually addressed and not brushed away or treated as any other normal relationship. In <i>Boku wa Imouto...</i>, it's hardly addressed at all, except to provide more drama of "oh noes we can't be together sad". It's frustrating to read and hard to enjoy. The sister manga to this one, while equally melodramatic, worked much better.

It doesn't help that the main girl has hardly any personality and absolutely no backbone or ability to stand up for her own interests. I don't like either of the main characters in the least.

Also, and this is even more subjective on my part, the art style is pretty awful. The main guy Yori is downright scary in appearance, particularly because of the strange way the eyes are drawn. I could never quite get used to the style.

I stopped reading after the fourth volume, because I didn't care anymore what happened.

... Last updated on April 5th, 2010, 8:36pm
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