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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
Лучшая в мире первая любовь
Самое прекрасное в мире - первая любовь
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

Latest Release(s)
v.12 c.Extra by RainbowPeenScanlations 5 days ago
c.Date Extra by RainbowPeenScanlations 5 days ago
c.27 by RainbowPeenScanlations 5 days ago
Search for all releases of this series

Status in Country of Origin
13 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 (748 votes)
Bayesian Average: 8.61 / 10.0
 51% (379 votes)
 19% (140 votes)
 14% (101 votes)
 7% (49 votes)
 4% (28 votes)
 1% (8 votes)
 1% (4 votes)
 1% (5 votes)
 1% (4 votes)
 4% (30 votes)

Last Updated
February 14th 2018, 6:55pm PST



Category Recommendations





Original Publisher

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

Licensed (in English)

English Publisher
SuBLime (9 Volume - Ongoing; Print)

Activity Stats (vs. other series)
Weekly Pos #318 increased(+80)
Monthly Pos #453 increased(+50)
3 Month Pos #556 increased(+2)
6 Month Pos #491 decreased(-124)
Year Pos #420 decreased(-158)

List Stats
On 2834 reading lists
On 487 wish lists
On 100 unfinished lists
On 580 custom lists

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Forum Posts
Second Season green-lit over 6 years ago
Sekai-ichi Hatsukoi Manga Has TV Anime in the Works over 6 years ago

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User Comments [ Order by usefulness ]

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cliche cliche   
Rating: 6.0 / 10.0
by NeoFish
December 8th, 2013, 11:12pm
I honestly dont think this manga is /horrible/ but its definitely not as good as it ratings chalk it up to be. (and I actually think its a whole lot better than Junjou Romantica)
The most prominent thing about series is the repetition of basically misunderstands and some smut. Really the whole plot just moves practically at a stand still because of all the unnecessary and ridiculous misunderstandings.
While I'm not too crazy over most of the sex scenes and such, I would admit that I find the humor to be good and I enjoy that aspect of it.
I say, read a little bit of it, and if it suits your taste or not, then thats what youll pretty much be getting for the rest of it.
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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 lifeincircuit
November 18th, 2013, 1:33am
I swore I'd never read this as I absolutely loathe junjou romantica, but my boredom one night forced me to reconsider. I will say, it's not quite as awful as JR, but I wouldn't call it good either. It is your archetypical, tired trope laden yaoi. Most of the couples have one character who is your standard tsundere type to an annoying degree. It just drags on and never really changes. The characters have only slightly changed since chapter one, yet we've run through the same scenarios over and over again. Nevermind the fact that I'm not entirely sure why any of them are in love to begin with. I can't stand half of them. All that said, it wasn't excessively boring as the writing is not without its good points. I can't say I was pleasantly surprised though.
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My third favorite yaoi.   
Rating: 10.0 / 10.0
by tohogirl5
October 22nd, 2013, 8:50pm
I can say a lot of things about why I love Sekaiichi Hatsukoi, but it'll take like 3 days. It's my favorite after Junjou Romantica and Koisuru Boukun...and thats says a lot.

But seriously Onodera have to tell Takano that he loves him too! How long will it take? How many more chapters or even volumes?
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Yaoi manga with a lot of potential   
Rating: 8.0 / 10.0
by ShuuChan
August 12th, 2013, 5:46am
This is a story about first love never dies... pretty cliche. Nakamura-sensei's works tends to be repetitive but with the right elements in the chapters that will be released in the future, this can be a nice manga.

Nostalgia - The most interesting of the three since it's the main story. BUT I HATE RITSU'S NEVER-ENDING TSUNDERE-NESS. If you like someone, why do you keep on denying it?! You have sex with the guy but you can't say those three words? Takano's... well, Takano. He doesn't have a particular trait that make him stand out among the other semes of SIH and JR. It's redeeming factor is the huge hurdle of the story that's Onodera's the heir of their family business, so I there'll be a lot of angst in the future (I love angst).

Domestica - The most hated story of the bunch. I actually like Hatori when I still don't know that he's some crazy maniac that when his switch has been flipped, he'll rape the person he's been in love for a long time. And Chiaki's cute at first but he's airheaded-ness is annoying. Although if you look past through the rape thing, I think Hatori's really sweet and his serious facade goes well with Chiaki's carefree personality.

Erotica - My favorite story, just because of one reason, and one reason only. YUKINA'S SO DAMN HOT I CAN'T EVEN... yeah. Really repetitive. Kisa's gonna be insecure about their relationship blah blah blah and when the confusion has been cleared-up, they'll end up having an intense make-up sex. Then the next chapter will be the same again. But there's been a little improvement with their relationship since Kisa's been able to express his feelings, even just a little bit.


... Last updated on August 12th, 2013, 5:51am
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Rating: 7.0 / 10.0
by Manaacass
July 20th, 2013, 11:03am
The story is good, the character in a normal state are interesting, but when it comes to "love" everything is the same, cliche after cliche. They are funny parts, and there is the story, i forgot their name, this guy who has a daughter and the other guy, that's a new story line. I hate Ritsu, but i understand what he is thinking, because maybe i will think the same in those situations, and Takano has a psycological problem, maybe a trauma for all the suffer, who know D:.
Kisa and Yukina is a good story but is the same as junjou egoist xDD
In genera the story goes to the same point, sometimes is funny and original but then is tha same.
I love sensei work, so if you hadnt read junjou i recommended xD if you like sensei, read it, but if you want a original story, this it isnt for you.
well yaoi manga lack of originality :/

... Last updated on July 20th, 2013, 11:22am
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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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Another overrated work   
Rating: 5.0 / 10.0
by mtmt1311
May 26th, 2013, 8:28am
Sigh. The main couple is no different from Junjou Romantica, which I already dropped. Seme is an over-achiever and uke is in love with seme, just in denial. "I dont love him, why did I do this, why did I do that? Blah blah blah" It makes me wonder, was he just born yesterday and know nothing of love. But at least its fun and the characters have personality and the second chance concept is not bad (8/10)

The childhood couple is cute but boring. I barely interested enough to read all the chapter (7/10)

Kisa couple was plain bad. This couple makes me realizes why people like it even though they're not into yaoi. It was plain shoujo. Boring heroine got a prince in love with her, for the most superficial reason. The prince being to nice to her, while she labelled herself as worthless and got all emo about that. Do I care about a dude who dont know his own worth, or at least try to get better? No. He spent most of his time worrying but did NOTHING for their relationship, not even trying, just blaming on the other party. Most of the things about his story doesnt make sense. He have no time for his lover now, but he had time to be a regular customer of love hotels and checking out guys. Instead of calling and talking to his lover, he was...wondering about deleting his contacts. And instead of confronting about the imagined "cheating incident", he gets another guy to his room. Well, I guess it didnt take a genius to see why this guy doesnt have any decent relationship. Congratulations for being my No.1 hated character in the series (1/10)

Yokozawa is a likable character. I want to read more of his story to give a proper rating.

All the couple has serious issues with communication, got we wonder how the heck did they get that line of job?
Overall, it is better than Junjou Romantica and entertaining (some couples) but nothing special really.

... Last updated on May 27th, 2013, 4:17am
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Like the rest, hate another   
Rating: 7.0 / 10.0
by Kinky-Chan
May 10th, 2013, 7:07am
Seriously saying, I really dislike Onodera. In fact, I think he's exactly just like Misaki from Junjou. No, wait, I think Misaki is even BETTER than him. For some reason, the author really enjoy drawing main uke characters with the "in denial attitude". It's not fascinating and it's making the story and the characters boring. Yes, I said BORING. I really do love the other side character's stories and at least, although the uke are sometimes having doubts or wavering feelings, but at least, they sort their problems after that and get a better ending. But Onodera's case is just...freaking annoying. It's obvious to us that he loves Takano. And because of his half-a$$ feelings and unable to clear out the misunderstandings is just making him look even worse. I do like Takano and his thinking is very much straightforward and matured.

So the only huge problem is definitely Onodera. No matter how he was "hurt" last time, but acting like a brat when he's all grown up is just unsightly. When I was watching the anime, I have the urge to punch him through my computer screen. Really.
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No yaoi fan   
Rating: 10.0 / 10.0
by mythcom
April 17th, 2013, 5:32pm
Iam not a yaoi fan
You can say that I don't like it
But this story is amazing I was so hooked up with it ,I couldn't put it down its one of the best

... Last updated on April 17th, 2013, 5:32pm
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