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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 (523d ago)
v.10 c.57 by JShoujo Scans (537d ago)
v.10 c.54-56 by JShoujo Scans (579d 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
Click here to view the forum

User Rating
Average: 6.9 / 10.0 (390 votes)
Bayesian Average: 6.89 / 10.0
 21% (83 votes)
 12% (45 votes)
 17% (65 votes)
 15% (57 votes)
 10% (40 votes)
 6% (25 votes)
 3% (11 votes)
 3% (13 votes)
 2% (8 votes)
 11% (43 votes)

Last Updated
November 26th 2015, 10:12pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Sho-Comi (Shogakukan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #733 increased(+53)
Monthly Pos #973 increased(+138)
3 Month Pos #1143 increased(+50)
6 Month Pos #1261 decreased(-60)

List Stats
On 1142 reading lists
On 640 wish lists
On 450 completed lists
On 197 unfinished lists
On 292 custom lists

Note: You must be logged in to update information on this page.

Forum Posts
How is this a spin-off? 988 days, 16 hours, 51 minutes ago
Spoilers Please! 1086 days, 13 hours, 55 minutes ago

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User Comments [ Order by usefulness ]

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Rating: 10.0 / 10.0
by gvermehren
September 3rd, 2012, 12:43pm
Seriously people who read it until chapter 10 or 11 can't say a thing about it. It's a wonderful manga and it's not about "sex" it's about desire and sacrifices. To tell the truth [spoiler alert], Iori and Iku only actually "do it" 2 times throught the whole 10 volumes of the manga.
At some point, you even forget they are simblings and start to focus on their suffering to be together. Whoever suffered for love will certainly see themselves in this story...
Also it's completly different from Flowers of Evil, stop trying to compare them.
The characters don't have super powers, they are not politically correct at all times (who does?), they are just human.
It's a great manga (and I'm not even a big fan of incest stuff), congratulations Aoki Kotomi!

... Last updated on March 12th, 2013, 2:16pm
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Rating: N/A
by doroteya333
July 18th, 2012, 9:30am
Very "angsty" manga, awkward at times. Like the time when they decided to have sex in a church, or Yori's mood swings. The ending is a let down, 10 year time skip is just too painful...I only managed to read the first 12 chapters and the ending...just too much; 4/10

... Last updated on July 18th, 2012, 9:30am
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It's repulsive   
Rating: 1.0 / 10.0
by ngocmaii09
June 5th, 2012, 11:04pm
Although I'm not against brother-sister love (I read Flowers of Evil and really enjoyed it), I have to say this story is just disgusting. It's all about sex and nothing else T_T How could such a story received a Shogakukan Manga Award @.@ Can't believe it ++

... Last updated on June 5th, 2012, 11:09pm
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a bad manga about angsty teenagers.   
Rating: 1.0 / 10.0
by iwasherexD
April 15th, 2012, 4:19pm
After reading Flowers of Evil, I was all for the incest thing. But this serie is just plain crap.
It basically goes like this: sex, Iku crying, more sex, Yori still being an asshole, even more sex over and over again. ANGST ANGST ANGST. T____T
I couldn't even read past chapter 11, let alone 40+ chapters.
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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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