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Sekaiichi Hatsukoi  
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Onodera Ritsu quits his job and transfers to the publishing company Marukawa Shoten. Sadly, he gets assigned to the editing department that handles shoujo manga; and Ritsu, who vowed to never fall in love again, working on love stories is impossible. Panic ensues when he realises that the arrogant and tyrannical head editor turns out to be his former first love!

Includes Onodera's co-worker Kisa Shouta's storyline of his encounter with handsome student and book store clerk Yukina Kou.


Related Series

Associated Names
世界一初恋 ~小野寺律の場合~
Mejor Primer Amor del Mundo - El Caso de Onodera Ritsu (Spanish)
Melhor Primeiro Amor do Mundo - O Caso de Onodera Ritsu (Portuguese)
Sekai Ichi Hatsukoi - Onodera Ritsu no Baai
Sekai-ichi Hatsukoi
Sekai-ichi Hatsukoi - Yukina Kou no Baai
Sekaiichi Hatsukoi - Kisa Shouta no Baai
Sekaiichi Hatsukoi - Le cas de Ritsu Onodera
Sekaiichi Hatsukoi - Onodera Ritsu no Baai
Sekaiichi Hatsukoi Przypadek Ritsu Onodery
The World's Greatest First Love: The Case of Ritsu Onodera

Groups Scanlating
Dangerous Pleasure
It's Daletos!
Ninja Scanlations
September Scanlations

Latest Release(s)

Status in Country of Origin
11 Volumes (Ongoing)

Completely Scanlated?

Anime Start/End Chapter
Starts at Vol 1, Chap 1 [S1]; Vol 3, Chap 5 [S2]
Ends at Vol 2, Chap 4 [S1]; Vol 6 Chap 10 [S2]

User Reviews

2 topics, 10 posts
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User Rating
Average: 8.7 / 10.0 (738 votes)
Bayesian Average: 8.61 / 10.0
 51% (380 votes)
 18% (136 votes)
 13% (98 votes)
 7% (48 votes)
 4% (28 votes)
 1% (8 votes)
 1% (4 votes)
 0% (3 votes)
 1% (4 votes)
 4% (29 votes)

Last Updated
October 14th 2016, 1:27pm PST



Category Recommendations





Original Publisher

Serialized In (magazine)
Asuka Ciel (Kadokawa Shoten)
Emerald (Kadokawa Shoten)

Licensed (in English)

English Publisher
SuBLime (5 Volume - Ongoing; Print)

Activity Stats (vs. other series)
Weekly Pos #301 increased(+19)
Monthly Pos #296 decreased(-112)
3 Month Pos #231 increased(+43)
6 Month Pos #232 increased(+31)

List Stats
On 2802 reading lists
On 463 wish lists
On 95 unfinished lists
On 547 custom lists

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

Forum Posts
Second Season green-lit 2065 days, 23 hours, 7 minutes ago
Sekai-ichi Hatsukoi Manga Has TV Anime in the Works 2163 days, 15 hours, 58 minutes ago

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User Comments [ Order by time added ]

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Really Love It!!   
Rating: 10.0 / 10.0
by babyloll
December 23rd, 2014, 6:05am
This is my favorite yaoi manga, the art is not that good but I love her art, I can feel the character's feeling from her art that's why i love it so much, her art have improved a lot. And the story is very touching, i can feel that Takano really do loves Ritsu and treasure him. The sex scene is hot enough for me, especially their expression, it feels like i always go "kyaaaa" the moment i saw them having sex.

I used to hate yaoi, but after i reading this i was thought "Yaoi is not bad huh, it actually very good..." and i becomes a fujoshi right away. Honestly, i always thinking "Why don't u just admit it that you fell for Takano already, Ritsu!!!" the moment I saw Onodera get tsundere all the time. I even shouted because of it in my bedroom alone like a crazy.

Anyway I really loves this manga very much! I hope the scanlations will continue to scan and translate it this manga.
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In Denial   
Rating: 10.0 / 10.0
by childlike_thunder
November 29th, 2013, 2:10am
Some hate this manga, some love it. It depends on if you like the following: nostalgia, denial, tsundere, cliche, and one more theme I find hard to put into words. The scenarios repeat over and over with slight changes like those that hate this manga say. But the slight changes are where the story and intrigue is at for me. It's that part of the manga that, for me, paints a picture of people desperately fighting both for and against a change in themselves that they both fear and need.

If you like inner conflict and internal struggles as much as I do (I believe how you deal is a big part of what shapes you as a person), then you can get past the cliches.

HINT: if i had to take a wild guess, I'd say introverts and those that like introverts might seriously enjoy this manga. Otherwise, you could seriously hate it.

Or you could have been seriously sheltered and repressed like I was and therefore relate to a lot of throbbing "in denial" about lust heartache and mind-blows.
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Rating: 6.0 / 10.0
by Trifoilum
July 23rd, 2011, 9:43am
Think of it as another perspective. (Alas, I don't expect people to stop burning me with fiery pitchforks.)

I read this first before Junjou Romantica, and... After reading Junjou Romantica, THEN this again, I arrived at one conclusion:

No one has friends here. You know, that kind of close friends you can talk about anything, ESPECIALLY your troubled love life / resurfacing first love of catastrophic past / your brother's best friend who actually liked your brother THEN started molesting you THEN started falling for you THEN you started falling with him.

How lonely. And no, definitely not cultural. One person, completely understandable. Two, okay, homosexuality isn't really accepted. I understand. Three, still fine. Not everyone in Japan has lotsa friends, moreso for accepting friends. But when almost all characters of the entire series + another series related to the work before all exhibit the same anguished, tragic, forcefully hidden under every rationale possible, all wrapped in denial, explosive love (or rather, the tendency to hide it and not talk about it until the worst possible moments).....

Milked for drama. I mean, think about it, a LOT of the tension presented in both series can be fulfilled without much (delicious, but still, artificial) angst if they talked to a friend who can then slap them in the head with a paper fan while yelling "BAKAAAAAAA! THIS IS NONSENSEEEE!!!". Or having a heart to heart talk.


And that's the bad part of Sekaiichi Hatsukoi -- in one word : pacing. Junjou Romantica only got like, 2-3 volumes (in which it alternates between different people and different personality and more especially, different kind of resolution) of The Masochism Tango + Belligerent Sexual Tension before going straight to Tsundere area. Sekaiichi Hatsukoi got like, 5 straight volumes. WITH Tsunderes on both sides.

Meta-wise, that's a bit...oi. Well I understand there are certainly progress (and sex. Lotsa sex.). But....exactly that point. I felt a bit cheated. Also a bit nonsensical (albeit sure, I can chalk this to suspension of belief)
Story-wise...dear God, poor Ritsu. He's broken and atm I don't wish for Takano to save him with The Power of Love, as much as for anyone to drag him to a therapist. A lot of psychologist could have a field day with his denial alone, not to mention his inferiority complex. Not to mention his mental avoidance towards 'proper healthy relationships'.

Other aspects, eeh. Standard fare of Nakamura Shungiku. Fans will come like piranhas, detractors stays 30 feet away.

I sure like the manga publishing aspect of the story, though, but I dunno....within the rose colored glass of Nakamura Shungiku's world, which is glossed over, and which isn't?

And thus, I'm done with my long perspective (ranting?). I'll follow it until the end, but just for the sake of a much-needed closure.

... Last updated on July 23rd, 2011, 9:49am
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This is why i'm in love with Yaoi   
Rating: 10.0 / 10.0
by ArtWaveAZJ
November 21st, 2014, 6:22am
It's not like Ritsu isn't in love with Takano right now. But it takes him long time to confess properly because he's a tsundere and his heart had been broken once. In the latest chapter, i remembered that he was scared about the future or some thing like "What comes after "happily ever after"" and asked Takano what would they do if they lived together and started dating. I like that. Ritsu is wanting a secure hapiness, like an ADULT.
P/S: I really like Nakamura-sensei quotes in this serie (more than Junjou Romantica) and her art is improving a lot smile
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Definitely anticipating every chapter   
Rating: 9.5 / 10.0
by trishakiss
September 7th, 2014, 4:29am
This manga is good and has a potential and way better than Junjou Romantica in many aspects (mostly the storyline). Anyway, I hope Nakamura-sensei would hurry and finish this up, which I think is pretty near considering the remaining days mentioned on the last pages of each chapter (unless she decides to put up new chapters from other pair which I totally don't like much, to admit). The pair I like most is, as hinted already, is Takano and Ritsu's. Other pairs don't seem to have anywhere to go (well, maybe Hatori's can improve?).

So sad though that the scanlation team stopped scanlating this and opted to just summarize each chapter which doesn't give justice to the manga at all. Sublime, the publishing company who licensed the series, will probably take 2-3 years to reach the part where the manga is at this point (and the wait is gonna be hard). But UPDATE, someone took it up and now I'm reading it! So happy biggrin
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Wonderful Story About 2nd Chance at True Love   
Rating: 10.0 / 10.0
by 2old4yaoi
April 17th, 2011, 8:42pm
I did enjoy Junjou Romantica but I was totally blown away by Sekaiichi Hatsukoi! I personally think it was leaps & bounds a much better work. I love the settings - the manga publishing industry; it is neat to be able to look at behind the scenes workings of one of my favourite hobbies. On top of that, I simply adore the main couple Ritsu x Takano. I think Ritsu is the most likeable Uke of all sensei's works so far. He is funny, head strong, intelligent & very refreshingly honest with his feelings even though it comes out in blurts of unintentional confessions sometimes. The story is somewhat more realistic too - the fact that both characters obviously dated others during the 10 years break. I am very much rooting for their second chance at this true loves. I also hope that despite the trouble at TokyoPop currently, this manga will get its much deserved English translation, publication & sale in US. Any publisher can't go wrong by hitching its wagon to this series of NAKAMURA Shungiku after seeing the success of long running series such as Junjou Romantica.
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mostly a delight so far   
Rating: N/A
by pleochroic
March 31st, 2011, 11:31pm
[as of volume 4] i also consider this to be better than junjou romantica, for several reasons: yes, the art is better, and that matters to me a fair bit, because i like manga best when the art and prose are both integral to the story. furthermore, the setting is realistic and really interesting to me -- this gives a better look at the manga publishing business than the highly praised bakuman. and i actually like onodera and takano; they're not annoying, screechy uke and overbearing, kichiku seme. ok, takano is a tad overbearing, but he actually has onodera's best interest at heart, really helps him when it comes to editing, and actually tries to communicate, which is a far cry from usami akihiko. i like onodera's inner dialogue better than misaki's as well; he's not as irritatingly clueless. and the humour is wittier and less obvious, which i like better.

kisa, on the other hand, is already getting on my nerves. his inner dialogue drives me up the wall. he doesn't DO anything for his relationship, but wastes time and energy on angsting, second-guessing, and bemoaning the fact that yukina is so understanding instead of jealous.

as to falling in love with somebody one doesn't know and how realistic that is: very. people do this all the time. they get attracted without knowing much about the person, and then they think that this is love. infatuation isn't really love, at least it's not the sort of love that lasts -- which is obvious when you observe how often "love at first sight" falls apart easily. where BL is pure, unrealistic fantasy is in pretending that this sort of infatuation is always successful, and will result in happily ever after, even if 10 years have passed with the people separated.

and yeah, DP -- fabulous scanlation job. i always hope these guys pick up series i like because they're so professional, so much so that they beat most commercial translations.

... Last updated on March 31st, 2011, 11:49pm
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Rating: 8.5 / 10.0
by aislin
August 13th, 2011, 3:30pm
I really like this series.

I haven't read Junjou Romantica so I don't know how to compare it to the original series but I really like Ritsu. I like that he's ornery and stubborn and I like that he lives a portion of his life in denial. The reason I like those aspects is because in some ways it seems more realistic to me. Too often in yaoi series, it seems like people have tons of drama over simple misunderstandings. In this case, yeah, there was some misunderstanding in the past but I actually don't personally believe that the misunderstandings are that out of control in the current part of the series. The things that Ritsu believes (whether or not they're true) make sense to me based on what he knows, and I like that he blocked a lot of things out of his past. It fits his personality because he does similar things in the present as well.

Spoiler (mouse over to view)
There are some things that I see in yaoi series that I get a little "*sigh* alright" about-- like how Takano basically keeps forcing himself on Ritsu. And the number of times they can go from sitting around nowhere near touching to all of a sudden being naked and having sex. One of the scenes that stood out the most to me with logistics is a car scene where all of a sudden Ritsu's on the receiving end of a whole lot of Takano love. I find it slightly hard to believe that they never have problems with anything and Ritsu is never uncomfortable since it seems like every time lube and (of course, since it's yaoi) condoms are nowhere to be seen.

But the thing that I like about this series is that if you keep reading, there are things that make sense. Ritsu is getting manipulated by Takano in some ways and that's not really the epitome of a healthy relationship. But at least Takano has reasons for not letting Ritsu get away. Ritsu ran away for a decade once and Takano doesn't want that to happen again. It doesn't really excuse any dominant behavior but it at least puts it in the context of his life. And since Ritsu's personality is such that I think he actually doesn't mind the dominating, it doesn't bother me the way it exasperates me in some series.

I know I just spent a lot of time mentioning things that aren't my favorite part of the series so it may seem odd for me to say I really like it. But I do. Ritsu makes me laugh. I find most of the characters to be endearing. I like that more and more information is getting out about the main two characters' pasts. I think I also like that this series is a little bit different-- that at least the uke isn't super girly and falling all over himself to get in the pants of the domineering seme. I like that Ritsu questions what the hell he's doing even as he's doing things he can't stop himself from doing. I like that Ritsu didn't want to believe he was in love for a long time. I like the little notations which amuse me, such as, "296 days until Ritsu falls in love." It makes me curious about what will happen to finally tip the scales-- what that final moment will be when he falls completely in love.

And I like that they have problems and miscommunication but a lot of it seems very reasonable to me. Yokozawa spends all this time filling Ritsu's mind with warnings and threats that it's reasonable to me for Ritsu to be hesitant and questioning and to an extent jealous. It's reasonable to me that he doesn't fully believe Takano when Takano says anything about it because he still doesn't know whether to believe whether Takano was just screwing with him when they were younger. It's reasonable to me that Takano reacted so poorly to finding out that Ritsu had some other stuff going on when they were going out before (I'm being vague to avoid more concrete spoilers), because once you find out more about him you learn that he had a tough life and he was kind of an angry kid and he didn't believe in people who were kind without wanting anything in return. If he thinks the one person who acted that way to him, who he came to love and who abruptly disappeared on him, and who later turned out to have potentially been two-timing him all along-- it makes sense to me if he had a bit of a breakdown when you add that to the other stress going on with him.

Also, this series has made me burst out laughing suddenly a few times, like when Takano finds out Ritsu's last name was never Oda XD That scene was great.

So in conclusion, it's not the absolute omg best ever yaoi series I've ever read. It does have a few tropes in it (which is why I gave it an 8 1/2). But I think they're outweighed by the characters and the interesting dynamics and the things that are done a little differently than your every day BL. I like that the series makes me laugh. I like that the characters are a little messed up but they realize they are and that there's a fair amount of character development. I like that the misunderstandings seem to have at least some amount of realistic basis. I like the dual story lines of the way Takano and Ritsu are at work and outside of work. I like that Ritsu is so determined to be seen as his own person. I like a lot of things about this series and keep coming back to it every few months to see if there are any updated chapters.

I would recommend people read this if they're curious.

... Last updated on August 13th, 2011, 3:37pm
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I on the other hand don't mind the high rating   
Rating: N/A
by juls91
April 14th, 2014, 12:08pm
I'm not surprised for the "high rating" this manga has... Because i enjoy it though i won't rate it just yet.
The art, i think, it kind of bothered me at first, but now in the last 2 chapters 17-18 the art seems to have "improved/changed" but i MISS the old art, strange i know, i guess i got used to it, and it grew within me that particular style.
It might be cliche but not completely and that's nice, i like the characters and their personalities (most of it at least) . But i'm actually only paying attention to Ritsu and Takano's story.
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Great Work!   
Rating: 10.0 / 10.0
by japcraze
June 23rd, 2013, 8:23pm
Though I really think Ritsu is a bit too stubborn, it just adds on the funny part of the story I guess. This is the first yaoi anime/manga that I have attempted and ever since then, I am so hooked to it!! One reason why I've become kinda a yaoi fan I guess =p DEFINITELY RECOMMEND THIS!!
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