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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 Case of Onodera Ritsu
The World's Greatest First Love: The Case Of Ritsu Onodera
The World's Greatest First Love: The Case Of Shota Kisa

Groups Scanlating
Dangerous Pleasure
It's Daletos!
September Scanlations
Tears and Rainbow

Latest Release(s)
c.21 by It's Daletos! (66d ago)
c.7 by It's Daletos! (203d ago)
c.20 by It's Daletos! (203d ago)
Search for all releases of this series

Status in Country of Origin
10 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: 8.8 / 10.0 (717 votes)
Bayesian Average: 8.7 / 10.0
 53% (379 votes)
 19% (133 votes)
 13% (90 votes)
 6% (46 votes)
 4% (26 votes)
 1% (7 votes)
 0% (3 votes)
 0% (2 votes)
 1% (4 votes)
 4% (27 votes)

Last Updated
October 16th 2015, 3:08am PST



Category Recommendations





Original Publisher

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

Licensed (in English)

English Publisher
SuBLime (3 Volume - Ongoing; Print)

Activity Stats (vs. other series)
Weekly Pos #414 increased(+33)
Monthly Pos #365 decreased(-21)
3 Month Pos #359 decreased(-72)
6 Month Pos #314 decreased(-4)

List Stats
On 2705 reading lists
On 457 wish lists
On 87 unfinished lists
On 523 custom lists

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Forum Posts
Second Season green-lit 1585 days, 0 hours, 33 minutes ago
Sekai-ichi Hatsukoi Manga Has TV Anime in the Works 1682 days, 17 hours, 23 minutes ago

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User Comments [ Order by time added ]

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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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Rating: N/A
by shadowhalls
July 14th, 2010, 7:05am
I love how she kinda ties her mangas together. In the first chapter, page 30, Usami Akihiko's (from Junjou Romantica) name is on a list of authors! teehee... he's in first place of course! smile

... Last updated on July 14th, 2010, 7:05am
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Don't get what all the hype is about...   
Rating: 4.0 / 10.0
by streetwalker
April 7th, 2013, 8:38am
Despite the fact that I tried reading Junjou Romantica before and ended up dropping it, I decided to give this a go since these mangas are so popular.

My initial impression was "better than Junjou" when it comes to the story. The art in the beginning of the series is just as god-awful. It's messy, but not because it's cluttered with too much detail or anything, in fact, it's too simplistic. It looks sketchy and not fine tuned at all, at times I felt like I was reading mere storyboards. Gives me a head ache to try and decipher what's going on. The characters are ugly, which kinda hurts the hotness of the yaoi-aspect of the story. To be brutally honest, it's probably the ugliest style out of any manga I've ever bothered to read.

However, the art â thank God â does get better and cleaner in later volumes, and though the design of the character's faces stays the same, the body proportions also become a lot more realistic as the story advances. Some panels are even stylistically quite artsy! I especially liked the rain scene where Ritsu and Takano are standing in the shelter...

When it comes to the story, there is something about it that's got potential. That, I think, is the humour more than anything else. The whole setting for the story is quite light and fun, not all that deep really, but not every story has to be. The only problem is that the plot develops slowly and the cute plot devices, like the count down to when Ritsu will fall in love, become repetitive. The manga industry setting is quite intriguing at least.

As for the characters, Ritsu and Takano aren't very likeable at first and there isn't anything very original about them. Reluctant uke in denial being forced by a forceful near rapist tsundere seme. Seen it, and seen it done much better too, even as these aren't my favorite yaoi tropes... Now, Ritsu had some good qualities, he doesn't come across as completely helpless, he's hardworking and quite strong-willed. Takano improves on closer acquaintance and I felt for him since he did seem rather hurt by Ritsu's rejection and messy love life. Despite being the poster boy of the overbearing tsundere seme, he turned out to be surprisingly caring. The insight we get into his back story and the deep feelings he has for Ritsu was for me the biggest draw of this story.

Kisa and Yukina are fine too, I enjoyed the story and liked the characters. Especially the older uke/eager young seme aspect was nice. I don't really remember the other couples...

There are things I like about this story but there are some serious consent and victim blaming issues even in the later volumes. Rape≠Love!

... Last updated on April 20th, 2014, 7:58am
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Rating: 10.0 / 10.0
by renxtsuruga
September 23rd, 2012, 2:21pm
MHMM<3 BEST YAOI MANGA EVER(: It captured my attention from the beginning and the artwork is pure amazing. I just love the personalities of the characters. RitsuxTakano <3
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one of my fav manga/anime except   
Rating: 10.0 / 10.0
by Narufan1st
August 27th, 2012, 5:49am
chiaki should be with yuu hatori is waaay too boring for him and chiaki and yuuu together are my OTP
my favourite couple though is kisaxyukina so cute<3
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Rating: N/A
by yaoi_addict
March 7th, 2011, 1:34pm
I really love Nakamura sensei's works! and this one is really awesome! the plot is funny and cute^w^..well I think it's not fair to compare it with Junjou Romantica because they are a bit different (and I personally like both of them *_*)
in my opinion this time Nakamura was able to draw a very interesting uke(Onodera Ritsu), I like his personality >w<and I also love Takano san*ç* but I can't stand Yokozawa è_é he's hateful and nasty and he really pissed me off!!!
well I enjoyed it a lot and I'm looking forward to reading the next chapter X3
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If it wasn't for him..   
Rating: 7.0 / 10.0
by EnjoyRomy
May 28th, 2012, 10:16am
What I like:
Takano, Kisa and Yukina. More or less they are frank, mature/adult, and sincere characters. I also like the misunderstandings and unsaid things and how pretty realistic they are, at least to me. My favorite couple is Kisa+Yukina, though I had high expectations for Takano+Onodera at the beginning. But then..

What I dislike:
Grown-up Onodera! I absolutely can't stand him! If it wasn't for Takano I would've stopped reading this already and I can't help but hope that he'd get tired of that kid and his immaturity and foolishness. Uff! Okay.. Also I'm not enthusiastic about how there seems to be only homosexual or straightbutinlovewithaman male characters in the same environment either.

... Last updated on May 28th, 2012, 10:20am
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Rating: 10.0 / 10.0
by DeDe4ever
November 10th, 2011, 6:06pm
So first, this manga to me is awesome. The charaters and the art are all 10 for me. Even though I just wanted to focus just on Takano x Ritsu, sensei pulled me into the other realtionships also. I dont like reading a manga again because I know everything that happened already and its just weird but I
I've read this one alone like 3 times (bored) but still I was excited because Ritsu isnt your average shhy uke and Takano isnt your average demanding seme. their a funny couple RECCOMENDED >___< READ IT

... Last updated on October 30th, 2012, 2:10pm
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LOVE it!   
Rating: 8.5 / 10.0
by ikuna
February 13th, 2011, 12:56pm
Wow. I had NO clue that this was from the same author as Junjou Romantica! xD No wonder Takano looks similer to Usumi!

Anyways, I prefer this to Junjou Romantica any day of the week! The drawings are definitely improved and Onodera's personality is more likable then Misaki's(in my opinion). So that's a big plus, I always loved having head strong uke's.

I think the story is great AND realistic, the drawings are amazing, the characters are great, and I cannot ait for the anime to come out this Spring!

... Last updated on February 17th, 2011, 4:48pm
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Pretty... good.   
Rating: 8.0 / 10.0
by lensan
March 27th, 2010, 10:21am
Alright, yes yes, the art is BETTER than Junjou Romantica but it isn't superbly good.
I think the artist HAS improved and the guys do look ... COUGH hotter. =u= Well, the plot seemed really new and refreshing at first but afterwards from reading the RAWS, it seemed kind of dull and lifeless.

I really hope she adds in some angst at some point. 8D
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