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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 over 3 years ago
v.10 c.57 by JShoujo Scans over 3 years ago
v.10 c.54-56 by JShoujo Scans over 4 years 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

3 topics, 15 posts
Click here to view the forum

User Rating
Average: 6.8 / 10.0 (410 votes)
Bayesian Average: 6.79 / 10.0
 21% (86 votes)
 11% (45 votes)
 16% (66 votes)
 15% (61 votes)
 11% (44 votes)
 6% (26 votes)
 3% (11 votes)
 4% (15 votes)
 3% (11 votes)
 11% (45 votes)

Last Updated
April 16th 2018, 9:56am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Sho-Comi (Shogakukan)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #475 decreased(-4)
Monthly Pos #653 increased(+180)
3 Month Pos #909 increased(+134)
6 Month Pos #1028 decreased(-74)
Year Pos #969 decreased(-47)

List Stats
On 1138 reading lists
On 665 wish lists
On 542 completed lists
On 205 unfinished lists
On 318 custom lists

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

Forum Posts
My god the mother about 1 year ago
How is this a spin-off? over 5 years ago
Spoilers Please! over 5 years ago

Click to view the forum

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User Comments [ Order by usefulness ]

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A decent tale of forbidden love   
Rating: 7.0 / 10.0
by SangMo
October 16th, 2016, 10:31am
I did enjoy this and honestly the only part that pissed me off was

Spoiler (mouse over to view)
When it's found out the mother cheated on the father on her wedding day with their best friend. The fact that the husband figured she did and was okay with it had me screaming at the screen. Like, she was engaged to you before you even met the other guy and you realized they flirted a lot so you're okay when she fucks him and gets impregnated on your wedding day? Wat? The father wasn't as bad, but the mother was an awful person.

... Last updated on October 16th, 2016, 10:34am
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How did this win any awards?   
Rating: 2.0 / 10.0
by moonmystery
May 10th, 2016, 11:42pm
It sucks! The story is basically about a bunch of overly hormonal teenagers without self control. Attempted rape happened more than once, and none of the characters seemed fully sane.

"Why am I assaulting you in the middle of the night? Because I love you!!" -- Main guy said.

Um. No. That's not okay. That's lust, not love. The author's shallow plot and badly drawn s*x scenes made this series a piece of garbage. I don't recommend.
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Love this   
Rating: 9.0 / 10.0
by AkariHimeDono
October 5th, 2015, 11:38pm
I love the plot and all, but Iku's mentality is a little annoying for me. Still, I can feel that their suffering is genuine since they know it's taboo but can't help sinking. To anyone who says that incest is gross thus not liking/reading this manga, because there's the incest element that the characters and the plot progress they way they did. If not, this would just be another typical whatsoever shoujo manga like any other.
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Rating: 6.5 / 10.0
by ohsnaptheresa
November 26th, 2014, 3:25pm
I felt the ending was anti-climatic. The build-up towards what I was expecting to be the ending left me sort of bitter about it. We don't find out anything about their future, which made me annoyed. I hope there is some sort of oneshot epilogue that might come out, otherwise you'd be left severely disappointed.
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Insest is always gross..   
Rating: 6.0 / 10.0
by tipz
November 26th, 2014, 8:28am
... But the story comes with a pretty good storyline.. I wish it didn't focus on sex so much as it should have focused more on their relationship buildup. Art was not as good as it was in Boku no Hatsukoi o Kimi ni Sasagu, but that is probably because the artistry was at its beginning stages. They make Takuma look way different in the other series.
Spoiler (mouse over to view)
it starts from the get go with a twin brother confessing himself to his sister, and almost forcing on her his erection. She takes it very fast for some reason.. They go through school with a secret relationship all the while he has another gf. She soon finds out their feelings and he breaks up with her.. As well he tells his bf that his feelings for her. As the middle school time is ending for them his sister ends up throwing herself at him to have sex with her because of her jealousy that the has already had sex with someone else.. He then moves to a boarding school where he thinks he is getting away from her. That is not the case he ends up sneaking out and getting in trouble to see her. All the whole his best friend is trying to be with her with no effect.. He also gets threatens by his ex.. She tries to get his sister raped when she sneaks into his dorms... He ends up getting into a fight then expelled... When he goes back home their mom already has catches on that they are in relation to each other but he also catches on that they may not be related.. The truth of the matter is that they are still twins but born by different fathers. Finding this out he leaves home and everyone behind.. She is determined to find him again though, and 10 years later she does.. She rushes to him and that is the end of it.
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I don't recommend it   
Rating: 4.0 / 10.0
by Verito.S
October 8th, 2014, 12:04am
I started reading this series when shoujo magic was still up, like a million years ago.
Probably a lot of people started this series back then, so obviously we were different people (and manga was different) 10 years ago.
Funny enough, the spin off is really good.
So... read the spin off, don't read this manga.

... Last updated on October 8th, 2014, 12:04am
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damn its so intense   
Rating: 10.0 / 10.0
by E.M.A
January 24th, 2014, 9:20pm
the OVA brought me here biggrin , well the truth is I don't like incest type, but I'm curious about the ending, and then I peak a little the latest chapter (49 so far). and then,
Spoiler (mouse over to view)
I found out that Yori want to find the truth that iku is not his sister, but iku is adopted by his parents.. and now I'm reading this smut things and thinking they are not blood related :D

yeah,,, I like it LOL

... Last updated on January 24th, 2014, 9:22pm
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Rating: 1.0 / 10.0
by HummingBird0o
October 12th, 2013, 7:52am
i don't know how ppl could even go reading to bind chapter 6 :l its too disgusting >< they do it on the train , in the church too ? !! there should be a limit to how fucking horny you are *-* its too stupid to read and waste of time >_<
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Rating: 2.0 / 10.0
by Narufan1st
July 24th, 2013, 10:24pm
First chapter wasn't that bad but it all went down hill from there , I try to keep an open mind and stuff but I seriously wanted to backhand that silly Iku girl , I mean she cries so much it's annoying then Yori is a jerk , he acts so mean . I only recommend if you have absolutely nothing better to do with your time , but in the end if seen worse , it's still bad to me though
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Amazing story, I love it!!!!   
Rating: 10.0 / 10.0
by Pyxis7
February 4th, 2013, 3:01pm
On Yori's defense I have only one thing to say:
"The only way to get rid of temptation is to yield to it. Resist it, and your soul grows sick with longing for the things it has forbidden to itself." - Oscar Wilde
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