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From MangaHelpers:
It's fairly obvious to Terui Chiaki that her classmate Ajikawa Yoshio has a crush on her. He is completely not boyfriend material in her eyes and, even if he was, Chiaki already has a boyfriend. Their mysterious teacher Mr. Yamada sees this relationship between the two students and offers an experiment. He is able to make copies of people and objects and does so with Chiaki, creating a copy of her, except the copy has no knowledge of her boyfriend. Yoshio will hit on the Chiaki copy, who is named Koaki, and he'll try to make her fall in love with him. After a specified amount of time, the copy and original will be combined back together and which ever love is stronger between the current boyfriend and Yoshio will overwrite all other emotions. So this love experiment begins and both Chiaki and Koaki, being the same person, thinks Yoshio has no chance in hell but with each passing day, some feelings begin to bubble.


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Latest Release(s)
v.4 c.Omake (end) by Japanzai over 3 years ago
v.4 c.20 by Japanzai over 4 years ago
v.4 c.19 by Japanzai over 4 years ago
Search for all releases of this series

Status in Country of Origin
4 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 8.1 / 10.0 (315 votes)
Bayesian Average: 7.96 / 10.0
 19% (61 votes)
 17% (52 votes)
 34% (107 votes)
 18% (56 votes)
 7% (21 votes)
 3% (8 votes)
 1% (4 votes)
 0% (0 votes)
 0% (1 votes)
 2% (5 votes)

Last Updated
January 26th 2016, 11:22pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Fellows! (Enterbrain)

Licensed (in English)

English Publisher

Activity Stats (vs. other series)
Weekly Pos #534 increased(+143)
Monthly Pos #1019 increased(+427)
3 Month Pos #1963 increased(+72)
6 Month Pos #2169 increased(+188)
Year Pos #2684 decreased(-184)

List Stats
On 944 reading lists
On 499 wish lists
On 1038 completed lists
On 17 unfinished lists
On 208 custom lists

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User Comments [ Order by usefulness ]

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Great and unappreciated manga.   
Rating: 9.0 / 10.0
by jjm152
August 14th, 2016, 10:30pm
I've been reading manga for almost 20 years and this is one of my personal favorites. While it may be on the short side in terms of length, every chapter is great and there are literally no wasted panels. The entire story is just super well constructed and easily flows from the page.

I don't want to spoil the story, but expect a lot of romance, a couple of tear jerkers and a lot of funny comedy with a solid ending and denouement that will leave you feeling satisfied. This manga is just a great way to spend an afternoon in enjoyment and I heartily recommend it.
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Short and sweet   
Rating: 8.0 / 10.0
by plotrobert
April 22nd, 2016, 7:33pm
This is the kind of romance manga I like. It tells a nice little story without needing 100+ chapters and does something a little bit different. There's some minor issues overall, like how things start off really well plotted out but the end seems kinda less well put together. I get the feeling the author may have had to rush things a little but still the ending is satisfying and sweet.
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really good one !   
Rating: 8.0 / 10.0
by hi2moony
January 27th, 2016, 3:29am
wow, for a H artis, this really unexpected, the male lead average but female lead is thoughtful. I think i will have a simple-mided lead that blush at every panel, I have none. except at the few last chapter, setting are good and plot + characteric are well made. plus art awesome, I like the expresion of them XD.

one minus for the few last chap though
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Characterful Romance   
Rating: 9.0 / 10.0
by DoujinHunter
September 16th, 2015, 5:39pm
This is a short and very well done love story with heavy emphasis on characterization and character growth. The leads grow up in the short time they are with us in great ways, all set in a atmosphere that masterfully balances the comedic and the serious. Though the plot device in other stories would have overshadowed the romance and characters, it is used to carefully further the decisions and sacrifices made instead of wash them away. Additionally, the art is great at showing characters' emotions, in character designs, and in setting.
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Not bad   
Rating: 8.0 / 10.0
by great_k
March 23rd, 2015, 6:41pm
For a hentai artist trying to break into mainstream manga, this is a reasonably good attempt.
I like the art and was pleased that the manga did not go down a dark path as it may have been inclined to do given its story elements.
Nice resolution to this series as well.
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Very surprising!   
Rating: 9.0 / 10.0
by JackGrover
October 27th, 2014, 12:57pm
Art is very good, characters each have their own unique personalities and it's easy to follow. The fact that the teacher is an alien/time traveler/person from another dimension et al, I at first thought was a little cliche', but giving him a goofy personality with a trustworthy side worked. And then the foreigners came to steal the experiment! Considering everything else, this was probably not necessary, but in real life it would be probable. Only 21 chapters long (Includes omaki) and a good read. Would be very interested in seeing more with these characters, possibly even an anime.
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One of my favourite   
Rating: 10.0 / 10.0
by jackblk
August 10th, 2014, 12:45am
This manga is so good, i read a lot of romance manga, but i must say this is one of the best.

Edit: Just re-read it by chance. It's so good. Last time i gave it 9/10, this time maybe 10/10 smile.

... Last updated on August 23rd, 2017, 10:48pm
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The way it is told   
Rating: 8.0 / 10.0
by MewMan
August 5th, 2014, 11:07pm
The art is incredible. Very expressive.
The story is okay, a bit fragmented toward the end. Still the laid-back storytelling, which is my favorite, makes up for it.
Too bad the author seems to draw hentai more than normal manga. I would love to read more of his works.
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thought experiment   
Rating: N/A
by jasperv
August 29th, 2013, 2:07pm
I really love this one
it look like a case of quantum teleportation the only difference is the original wasn't destroyed
and is explore how we act differently depending on our environment and events unfolding
are we really free?
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