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Manga Info
Umibe no Onnanoko  
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From Kotonoha:
Koume Sato and Kosuke Isobe are two teenagers living in a sleepy seaside town. After getting used and dumped by her crush, the emotionally damaged Koume decides to start a sexual relationship with Kosuke, without any emotions involved. However, they both soon discover that sex with no strings attached does lead to unexpected complications, not just for themselves but also the people surrounding them.


Related Series

Associated Names
A Girl by the Sea
A Girl on the Shore
Dziewczyna znad morza (Polish)
La fille de la plage (French)
Mädchen am Strand (German)
Девушка у моря (Russian)
فتاة على الشاطئ (Arabic)

Groups Scanlating

Latest Release(s)
v.2 c.15 by Frostoria over 7 years ago
v.2 c.15-20 (end) by Shoujolemon over 7 years ago
v.2 c.14 by Frostoria over 7 years ago
Search for all releases of this series

in Country of Origin
2 Volumes (Complete)

Completely Scanlated?

Anime Start/End Chapter

User Reviews


User Rating
Average: 7.7 / 10.0 (561 votes)
Bayesian Average: 7.64 / 10.0

Last Updated
September 11th 2021, 2:51pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Manga Erotics F (Ohta Shuppan)

Licensed (in English)

English Publisher
Vertical (1 Volume - Complete)

Activity Stats (vs. other series)
Weekly Pos #620 increased(+51)
Monthly Pos #1045 increased(+218)
3 Month Pos #1649 increased(+277)
6 Month Pos #1878 increased(+312)
Year Pos #2422 increased(+266)

List Stats
On 954 reading lists
On 880 wish lists
On 1374 completed lists
On 45 unfinished lists
On 334 custom lists

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over 8 years ago
over 9 years ago

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User Comments  [ Order by usefulness ]
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Some impressions  
by Kamugin
July 31st, 2021, 3:41am
Rating: 8.5 / 10.0
At the beginning, both of them are dumb and awkward, specially Sato, falling for a playboy, getting hurt and still unable to learn from her mistake, so she continues to make wrong choices by giving herself to a messed up guy like Isobe. He actually never has tried to understand Sato, he is far too much self centered, and Sato is still driving blindly through life but truly hoping to reach a safe place and even happiness. She tries to make things work with Isobe, despite he isn't a good choice obviously, but where they live there isn't much to choose from and Sato is far from perfect herself.

Long story short, Sato chooses to follow the proper path society offers to her. Did Isobe really ever care about about her? "I am only interested in your lower half" I can't imagine something worse than this to say to a lover, he's an asshole on the same level as Misaki. By the other hand, Isobe is contradictory, pretty commom condition among humans. More than once he asks for a kiss as a proof of true love, but a more mature love is yet to bloom in Sato's heart, her feelings are still a mess, however she is slowly getting her act together while Isobe goes in an opposite way.

Isobe was never interested in living an ordinary life, drowning in darkness he fails to notice the way out that is Sato. She may not be a magnificent golden door, but she is a hole (pun not intended) that leads to outside. Isobe doesn't want to leave the darkness, he's already addicted to it. The more Sato opens her heart to Isobe, the more he closes his to her. The timing was always amiss between those two. By chance Isobe finds "The Girl on the Shore" and as immature as Sato was at the beginning, he finally decides to follow the path of rightness that Japan's society offers to their youth but then it's already too late, he erred more than he was allowed to and the darkness refuses to let him go. I don't feel sorry for him.

... Last updated on July 31st, 2021, 12:50pm
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To be expected  
by misukochan
August 27th, 2019, 10:56pm
Rating: 9.0 / 10.0
I am not disappointed with this manga. As expected of the author of Punpun (not sure which came first, i read Punpun before this). The story depicts a part of reality, that some do go through this kind of growth.
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The sea  
by Gandeloft
February 4th, 2018, 4:25pm
Rating: 10.0 / 10.0
The art is outstanding.
The whole text below is spoiler-ish.
I don't like the stuff that didn't happen because the stuff that did did. The point in that for me is that I did grow to care about it. One of the things I was not entirely in sync with was the certain 18+ scene. I love the significance that I had thought it represents though; Him loving her so much that her everything is perfect.
In another life.. I hope I'll get to have someone to have some perfect moments with, such those few for me perfect moments in the story.
I guess the word for this story is "realistic".
I was reading it without thinking to myself "Yea, sure.". Isobe's back story and the way he handled his response to the bloger were unquestionably realistic for me.
I would like to see Isobe and Sato see each other once again, by accident, with the whole meeting lasting a moment, making it immediately apparent how even still in that moment of the future they'd jump back in to their old selves and act immaturely without coercing themself into doing the "right thing" and prolonging the encounter, their image triggering a relapse of their past feelings for each other.. That's just one way it could happen.. Stories that do this to me, make me ponder like this... What more can I get, I guess.
Will they ever look back thinking how what they'd had was exotic, perfect, rare, and have a smile put on by the thought, knowing it's already been 10 years since and that the past is dead..
Sato did such a huge thing for Isobe in the end and he'll probably never have gotten to know of it.
During the time of them two, it was just time, and as it was coming to an end, the value of it became almost palpable.
In the end, you don't know what you have until you've lost it, and with that experience of the past, Sato is at the end seemingly on the beginning of another story. But is it another story, or will it now just be living life? That stage of her life was already written.
Will it bring her to say the words "I love you.", before she actually feels the feeling, will it make everything hard because she'll be awkward with herself not feeling the feelings she thinks that she should feel and if the situation was over would feel? This is getting too subjective of me, but it's lovely, to experience stories which achieve that.
Sato's childhood friend, Kashima.
Perfect implementation.
Exactly as it goes with some "childhood friends", from my experience.
They're not some big existence, they're just people you've known for a long time.
Spoiler (mouse over to view)
In the end, on the last few pages, you can see how there could've been a lot more told, were Inio to have included how Sato and Kashima had met. That time when Kashima called for Sato to come to him, so his squad of friends could tell him if he's taller than her yet. She unhesitatingly obliged. That surprised me, I literally thought that they were going to bully her. On the last few pages, I was given so much more context. He casually goes about hinting at her that he wants to be with her. And it's not just that, it's that he hinted at her that he STILL wants to be with her. Like with NieR:Automata, it seems to me that a whole segment of plot took place before the narration began. He's obviously been head over heels for her for such a long time, BUT, I think that the unnarrated plot part is that she knows that. He was ever truly only her childhood friend though. The sort you're good with, but the sort that isn't so much an anime childhood friend, but a real life childhood friend.

... Last updated on March 4th, 2021, 7:48pm
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Good story  
by Seiryunanago
November 30th, 2014, 1:11am
Rating: 10.0 / 10.0
The thing with teen love and sex isn't that it's emotionless, it's just that they have all kind of feeling and are afraid to be honest with their feelings, which can lead to all kinds of disappointment and missed opportunities.We tend to also see life as something harder than it actually is. When we are young, we miss the mark, a lot, and umibe show that well.
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Avant-garde or real life  
by UsoSora
April 16th, 2012, 10:56am
Rating: 10.0 / 10.0
As previously mentioned, it does not only have a potential but it actually is a japanese avant-garde literature in drawings; realistically presented scenes and lives of the modern people who have fallen in a deep abyss of depression and realization of the world in motion that surrounds them, especially the way the teenagers' minds work and see that world through their perception, prematurely stained with the dirt of the collective mistakes that humanity breeds even today. Premature loss of the innocence...

... Last updated on February 8th, 2014, 9:37am
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A hidden gem  
by lictor
December 15th, 2011, 11:20pm
Rating: 10.0 / 10.0
If you are looking for something light-hearted, look elsewhere. Otherwise, prepare yourself for a real treat.
This is a serious, real-life, coming-of-age kind of story.
The drawings are great, very realistic and detailed. The characters are deftly fleshed out.They are teenagers but the story in which they are involved is utterly mature.

I'm truly impressed and looking forward to the next volume.

... Last updated on December 15th, 2011, 11:25pm
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Not bad at all  
by jeffreymgibson
November 9th, 2011, 10:28am
Rating: N/A
If you like realistic mature comics, then this is a decent read so far. It's only scanlated through the 1st volume so far but more should be coming soon. It ended at a severe cliffhanger.
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