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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 (3041d ago)
v.1 c.4 by Dragon Voice Project (3157d ago)
v.1 c.3 by Dragon Voice (3509d ago)
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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 (443 votes)
Bayesian Average: 8.27 / 10.0
 29% (129 votes)
 22% (99 votes)
 19% (84 votes)
 19% (86 votes)
 6% (28 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 #931 increased(+76)
Monthly Pos #1589 increased(+76)
3 Month Pos #2082 increased(+195)
6 Month Pos #2434 increased(+372)

List Stats
On 175 reading lists
On 445 wish lists
On 1161 completed lists
On 18 unfinished lists
On 262 custom lists

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Forum Posts
HElp don't understand (spoiler) 2397 days, 10 hours, 44 minutes ago

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User Comments [ Order by usefulness ]

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Very Good   
Rating: 9.0 / 10.0
by svines85
November 30th, 2016, 11:39am
What a great little story, a straightforward plot that's established early, with mostly likable (and supportable) characters throughout, and (though it's fairly short, it's still not a given) it's told consistently to the end.

Yup, very good, a winner I picked up from haunting the "I'm Looking For..." forums and making sure I at least give a look to any/every thing that's recommended there biggrin
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Rating: 5.0 / 10.0
by maidenrose
January 16th, 2016, 4:41pm
Seemed interesting at first because the protagonist was
Spoiler (mouse over to view)
so unusual for a main character, pitiful and void of any real identity of her own. She was portrayed a someone who idolized her sister so much that she imitated her and sought her approval constantly. She was the prototypical throwaway side-character, who is nothing without their relationship to someone greater than they.
The end was rather disappointing. It didn't seem like the character had undergonme much personal growth imho. Reminded me of why I don't read shoujo anymore.
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I want moreeeeeeeeee   
Rating: N/A
by hangluu
August 24th, 2015, 1:15am
This is sooo amazing. And i want more. It makes you think about how your decisions affect other people and how others' affect you. And you should find yourself instead of being an android that follow orders from a person. The sister is a bitch.. a huge bitch.
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It's alright, nice and short   
Rating: 7.0 / 10.0
by flowinmyboat
November 2nd, 2014, 8:27pm
I had put this series off for a while because the first chapter bored me my first read through. Decided to finally finish it and thought it was pretty good. It definitely could have been a little longer and fleshed out since you are thrown into some situations and it's a bit hard to follow in some places. Maybe less hard to follow and more, "Did she change something? Did this happened already?" I think another reviewer mentioned something similar to this and I guess it wasn't too bad since they were minor details at best. But, considering that this is a dream-like story, I would have personally preferred some exposition just to keep things clear.

The ending felt like it was a page or two short. It was somewhat abupt and confusing
Spoiler (mouse over to view)
(did Hiraoka recognize her as the person who helped him? Was he not suspicious she didn't age? Or, alternately if the 14yr old Nana helped him, did they not keep in contact those ten years?)
but not disappointing. But the story was really interesting and there were a few parts that actually elicted an emotion from me as a reader. Overall, good read.

... Last updated on November 2nd, 2014, 8:34pm
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Really good   
Rating: N/A
by mistress_tanpopo
June 29th, 2014, 12:45am
If you could go back and fix things that you regret would be so awesome. This story gives you a glimpse of what it could be like. I really wish it was longer but it was a very great read.
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Rating: 9.5 / 10.0
by coco77
June 28th, 2013, 10:46pm
Yup, breathtaking. I really had no problem with the disjointed narration like some mentioned; I think it portrayed beautifully the fragmented nature of her lost memories and lost personality. The character grew incredibly in only short five chapters, and though quite abrupt, that growth felt really natural and inspiring. The romance, though not the focus of the story, managed to touch my heart in such a special way. So in short, I loved it. Please don't hesitate, go ahead and read it.

... Last updated on June 28th, 2013, 10:50pm
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I'll be the asshole   
Rating: 5.0 / 10.0
by Fundefined
December 26th, 2012, 10:27pm
Heptagon is nothing special. It has awful artwork and panel layout. The narration is disjointed and you can't tell when time lapses have occurred. The author clearly put some thought into the plot but she does a mediocre job explaining character motivations and tends to repeat herself a lot. Sorry to put a damper on 3 pages of endless praise but this manga is just average.

... Last updated on December 26th, 2012, 10:29pm
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Short, sweet, and so darn amazing   
Rating: 10.0 / 10.0
by nin-nin
November 6th, 2012, 6:08am
I started and finished this in less than half an hour, but it's the first manga I have read that had me saying out loud, "Omg nonononono please no! Nooooo!" and then "Yes yes yes!" and finally "Wow. Wow..... wow." I really felt for the characters.

It is so well-written; tight and neat and really packs a punch. Hijiri Chiaki does a fantastic job of creating drama and tension in all the right ways. I was totally gripped all the way through, and the ending was totally satisfying and cathartic and just wonderful.

I love Heptagon. Truly an all time favourite. Definitely re-reading.

p.s. Sorry for the disjointed and rambling comment, I am still reeling from the sheer awesomeness of this manga.
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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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