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Boku wa Mari no Naka  
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Isao Komori is a college dropout who spends his days cooped up in his apartment playing video games and masturbating. The highlight of his day is visiting a convenience store where an angel-like high-school girl called Mari visits every night.
One morning Komori wakes up in Mari's body. Another "Komori" inhabits his old body, and Mari has disappeared. Komori struggles to maintain Mari's ordinary life and starts to investigate Mari's disapperance. Perhaps Mari wasn't so innocent and perfect after all?


Related Series

Associated Names
Я теперь Мари
I'm in Mari
Inside Mari

Groups Scanlating

Latest Release(s)
c.80 (end) by Crunchyroll (232d ago)
c.79 by Crunchyroll (253d ago)
c.77-78 by Crunchyroll (267d ago)
Search for all releases of this series

Status in Country of Origin
9 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 7.6 / 10.0 (351 votes)
Bayesian Average: 7.52 / 10.0
 15% (52 votes)
 19% (66 votes)
 25% (86 votes)
 19% (68 votes)
 9% (32 votes)
 4% (15 votes)
 3% (12 votes)
 3% (9 votes)
 1% (3 votes)
 2% (8 votes)

Last Updated
March 20th 2017, 8:29am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Manga Action (Futabasha)

Licensed (in English)

English Publisher
Crunchyroll (digital simulpub)

Activity Stats (vs. other series)
Weekly Pos #723 decreased(-106)
Monthly Pos #826 decreased(-97)
3 Month Pos #677 increased(+191)
6 Month Pos #825 increased(+17)

List Stats
On 1773 reading lists
On 618 wish lists
On 449 completed lists
On 58 unfinished lists
On 299 custom lists

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

Forum Posts
Inside Mari Ends 254 days, 7 hours, 36 minutes ago
2 Things I want to say 265 days, 17 hours, 4 minutes ago
Inside Mari (My thoughts) 861 days, 9 hours, 40 minutes ago

Click to view the forum

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User Comments [ Order by usefulness ]

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Serious, realistic, yet annoying   
Rating: N/A
by zanaikin
August 29th, 2013, 1:27pm
Ever seen a genderbender/bodyswap manga where the guy experiences being caught unaware and unprepared by a menstruation period?

This manga takes the bodyswap premise very seriously, fills the characters with anxieties and problems with not a moment of romcom in sight. If realistic genderbent psychological drama is what you expect, that's what you get, with zero fluff for padding.

Warning though: both of the main characters are complete social rejects (bad personalities too, not just introverted) trying to fill in the life of a popular girl -- with a dark secret that makes it questionable which of them is more screwed up. Dark with an abundance of psychological problems may be normal for this mangaka, but doesn't make it any less frustrating if not infuriating to read. The lack of comic relief whatsoever makes this manga enthralling but not really enjoyable.

... Last updated on August 29th, 2013, 1:29pm
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Great so far   
Rating: N/A
by RoxFlowz
August 24th, 2013, 12:48pm
One of the best gender bender I've seen so far, it has a very realistic side to it. It's quite unpredictable, though I hope it doesn't take a dark turn.

@ jeffreymgibson:
It's not unrealistic. He explained the reason for not doing so. Even if you don't understand it, it doesn't make it unrealistic. In fact, it's befitting of his character.
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One thing i dont get about bidy swap mangas...   
Rating: N/A
by jeffreymgibson
August 7th, 2013, 12:27am
One thing i never understood about a body swap manga is what kind of a guy would change bodies with a female and then Go out of his way to avoid seeing his new naked body or to try to avoid looking at the other girls in a locker room. Such a cliche in manga. Lets get real, if i swapped bodies with a hot girl, i would probably spend an entire 24 hours playing with myself and getting aquanted with my new body. I would like to see at least one body swap manga where the characters react like real live people instead over overused manga and anime cliches.
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Surreal with a pathetic protagonist, but why am I not dead inside yet?   
Rating: N/A
by myopius
July 24th, 2012, 10:47pm
Yes! Another Oshimi Shuuzou work with a paranormal plot device that ties into existential themes, like Yuutai Nova! is what I thought at first, but in contrast to his other works, I actually chuckled a little bit when I was reading this.

With only 4 chapters out, so far it has been extremely similar to a typical body swap manga. Except done in Oshimi's usual "surreal" style. There's a hint that the female lead Mari may have a dark side similar to female leads of his other works, but it's been entirely his perspective so no info yet.

I could see this getting really dark, though. For example, maybe he will slowly inadvertently ruin her life, while she achieves fame and fortune in his life and bullies or abuses him using his body on her body.
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Rating: N/A
by Spearsmen620
June 26th, 2012, 3:05am
Four chapters out so far and only one word can describe this manga. So far, the manga has been not that dark, but given the mangaka's previous works, it will become spiraled into being a dark manga and I truly do want to see that happen. This genderbender manga will not be as light-hearted and comedic as most other GB series, so I would love to see what the mangaka has in store for the reasons behind the body swap. I would also love to find out what the 'secret' that Mari has that is said in the description.

... Last updated on June 26th, 2012, 3:06am
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Seems good   
Rating: N/A
by irrelevance
June 5th, 2012, 9:36am
I hope this one won't be as weird as Aku no Hana. Gender-bended stuffs are usually quite interesting, so I have hope for this one.
Though I wonder why this mangaka is so obsessed with loser male. Not the whiny, indecisive type, but just straight-up depressing male protagonists.
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Cannot be rated Yet   
Rating: N/A
by bull3thole
April 30th, 2012, 11:29am
The manga has a lot of potential. Just 2 chapters in and nothing happens yet. The author is really clever because he is making his reader anxious to find out the reason for the body switch.

I just hope that the author doesn't cancel this series just his last work "Yuutai Nova". This manga has lots of potential.
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