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Nana, an apathetic 24-year-old with nothing much in her life, suffers a car accident and wakes up in her 14-year-old junior high body. As she lives through each day, she starts to remember things she buried deep in her memory, and she can now not remember being involved with her older sister, whom she deeply admires, and her sister's first love, a senior at her school.


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Associated Names

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Latest Release(s)
v.1 c.5 (end) by Dragon Voice Project over 9 years ago
v.1 c.4 by Dragon Voice Project over 9 years ago
v.1 c.3 by Dragon Voice over 10 years ago
Search for all releases of this series

Status in Country of Origin
1 Volume (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews

1 topics, 11 posts
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User Rating
Average: 8.4 / 10.0 (454 votes)
Bayesian Average: 8.28 / 10.0
 28% (129 votes)
 22% (99 votes)
 19% (88 votes)
 20% (89 votes)
 7% (32 votes)
 2% (10 votes)
 1% (5 votes)
 0% (1 votes)
 0% (1 votes)
 0% (0 votes)

Last Updated
July 30th 2016, 12:34am PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Chorus (Shueisha)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #504 increased(+247)
Monthly Pos #1406 decreased(-5)
3 Month Pos #2206 increased(+110)
6 Month Pos #2344 increased(+228)
Year Pos #2756 decreased(-81)

List Stats
On 178 reading lists
On 455 wish lists
On 1192 completed lists
On 18 unfinished lists
On 279 custom lists

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Forum Posts
HElp don't understand (spoiler) over 7 years ago

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User Comments [ Order by usefulness ]

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Oh my Godness!   
Rating: 10.0 / 10.0
by fisukisuki
September 27th, 2012, 11:02am
it was AMAZING!!! I surprised and happy in the same time! This is the best!!! Now I know why people like this manga. It was such wonderful manga ever!!! The plot is Incredible! The art is nice! The characters is Great! It's good I read it until the end! Crap, I can't stop praising this manga! biggrin The ending is CUTE! DEFINITELY RECOMMENDED!!!

... Last updated on September 27th, 2012, 11:03am
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made me cry :')   
Rating: 9.0 / 10.0
by otakuness
August 10th, 2012, 8:32am
this manga was really refreshing, its been so long since ive last read an actual manga from my Wish List.. and i gotta say i have no regrets. it had good timing, the art was really cute, the characters had amazing development. the character though a bit weak was not annoying to me maybe because she reminds me of myself a little too much it hurts. unrequinted love.. that was the story of my highschool life smile and i look fondly at it because no other boy left such an impression so im waiting for someone who will leave a mark xD anyways back to the subject, i liked how it ended.. because im a happy ever after kind of person and it just made me sigh.. it was just so lovely and you just cant help but like it! really! i mean who would not like this? and also the length! the length was just perfect but sometimes the fainting episodes were just confusing.. i mean which parts were the memories, which the actual happening at the moment? but i sorta got it smile

... Last updated on August 10th, 2012, 8:34am
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Definitely a reread   
Rating: 10.0 / 10.0
by ListeningDaisy
July 23rd, 2012, 10:57pm
I loved it. It was executed perfectly and was a dream come true. It had a nice moral, good ending, character growth, likable art, and a thought provoking plot. What more could anyone want besides more.
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So good :)   
Rating: N/A
by eveB2
July 8th, 2012, 9:57am
The story is so beautiful smile I just love it biggrin It is well developed biggrin I dont like those 1-volume mangas, because I believe no good story can be in one volume. I was so wrong. This one is very good, the art is beautiful. I just hope there will be a sequel T_T I want to see more romance.
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Very Well Done.   
Rating: N/A
by Zhenis
January 12th, 2012, 4:11am
I was very mesmerized by this manga, I recommend it.
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a rare jewel...   
Rating: 9.0 / 10.0
by svyatoslav
September 27th, 2011, 11:35am
I must say that this is one beautifully executed story and the art really suits it well setting the mood perfectly. The ending manages to have the same impact as a tragic one despite being happy, something that's very rare. Usually these types of happy endings feel like a cop-out leaving an empty aftertaste, but not this one. It really is the perfect ending for a story with a semi-tragic tone.

My only criticism, and this is a matter of personal taste I guess, is that the story is a bit disjointed and at times I was a bit confused as to what actually happened in the past and what she changed. I mean, it is mostly clear on the big points but some details were ambiguous though considering that the author had to show both without being too obvious about it, he/she did a good job. Then again, this is just my personal taste and why I took off a point, but I rarely give such high ratings.
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Rating: 10.0 / 10.0
by j4n3
June 11th, 2011, 2:35am
WTF!!! I want to time travel too, to change all my mistke.... This is my number one slice of life manga.. the truth this story almost the same as mine, I also treasure my big sis lot lke her, so the family part of this story really touch me and smhow this manga gave me courage to find myself happiness....

I also like her words: "Dont think that the crying one is always right!" biggrin
that's true.... damn they that always mke crocodle tears....

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Rating: 9.2 / 10.0
by Oriolidae
February 12th, 2011, 10:30am
This manga is very beautiful. I just started reading it from my "jumble manga folder" on a whim, and boy was I surprised? This is some deep poo, man!

What would you do if you could relive certain parts of your childhood, would you act differently or just enjoy reminiscing? This manga depicts how easily children can be destroyed for life, just because of bullying, and how their personality will change drastically accordingly. But the manga goes much deeper than that, when it takes up topics about death (and the feelings of the ones left behind) and siblings relationships from a child's and a grown-up's point of view at the same time.

I enjoyed it very much, and now I actually also want to travel back to when I was a kid, to change how I reacted to so many things. Aw... Damn, WHY CAN'T I?


Egoamote, I think the reason why they didn't choose the ending you depict is because that would reduce the audience. It is just my perception that quite some people may drop reading mangas if they are somewhat tragic.

... Last updated on February 12th, 2011, 10:42am
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Rating: 10.0 / 10.0
by liquidsin
February 10th, 2011, 7:16pm
Heptagon is a great story that immediately grabs the reader's attention. The quick pace and short length combine to make it flow seamlessly while also trimming off the excess fat (no repetition, silly gimmicks, etc.). It is also very easy to relate to because it deals with family matters, relationships, and the past regrets that one wishes to change. I highly recommend Heptagon to anyone looking for a good read.
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Rating: 10.0 / 10.0
by holibelle
May 29th, 2010, 11:21am
honestly, i was really surprise with this manga. the story is so meaningful and has a lot of depth. i have to say that this is one of those manga (which come far in between) that you will learn so much about. i really 100% recommend it.
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