Sekaiichi Hatsukoi: Onodera Ritsu no Baai
The World's Greatest First Love: The Case of Ritsu Onodera
What would you like to edit?

Sekaiichi Hatsukoi: Onodera Ritsu no Baai

Alternative Titles

Synonyms: World's Greatest First Love: Ritsu Onodera's Affair, Sekaiichi Hatsukoi: Yukina Kou no Baai
Japanese: 世界一初恋 ~小野寺律の場合~
English: The World's Greatest First Love: The Case of Ritsu Onodera
More titles


Type: Manga
Volumes: Unknown
Chapters: Unknown
Status: Publishing
Published: Oct 13, 2006 to ?
Genres: Boys Love Boys Love, Comedy Comedy, Drama Drama, Erotica Erotica
Serialization: Emerald
Authors: Nakamura, Shungiku (Story & Art)


Score: 8.351 (scored by 1085610,856 users)
1 indicates a weighted score.
Ranked: N/A2
2 based on the top manga page. Please note that 'R18+' titles are excluded.
Popularity: #673
Members: 26,619
Favorites: 1,598


Ranked N/APopularity #673Members 26,619
Add to My List
Volumes: /?
Chapters: /?


Ritsu Onodera's dream is to edit Japan's bestselling novels, which makes Marukawa Publishing the best place to fulfill his goal. However, things do not go as planned when, instead of the literature department, he is assigned to Emerald—the shoujo manga department! To make things worse, his new boss, Masamune Takano, is an unsubtle slave driver willing to go as far as kissing Onodera to act as a reference for a manga artist. Nevertheless, Onodera is driven to prove himself, hoping that his good performance will allow him to transfer someday.

Onodera slowly settles into the flow of the surprisingly all-male Emerald Department, and the romantically-themed work reminds him of his high school ex-boyfriend and first love. Not wanting to think about that jerk, he focuses on learning the ropes from Takano, who behaves strangely the more he learns about Onodera's past. It all comes to a head when they finally recognize each other: Takano is the jerk who broke Onodera's heart, but according to Takano, it was Onodera who suddenly left him without a word.

Emerald's passionate editors already know plenty about romance, but they can learn even more about it themselves once they meet their one and only true love. In Onodera's case, it is only a matter of time until he realizes that he is still very much in the middle of the "world's greatest first love."

[Written by MAL Rewrite]


Sekaiichi Hatsukoi: Onodera Ritsu no Baai has been published in English as The World's Greatest First Love: The Case of Ritsu Onodera by SuBLime since April 14, 2015.

The Emerald manga magazine, launched by Kadokawa, is the real-life version of the one featured in Sekaiichi Hatsukoi, the only difference being that the fictional Emerald features only shoujo manga while the real-life one features both shoujo and yaoi titles.



Jul 8, 2011
Preliminary (11/? eps)
Yes...Yes... When we talk about Sekaiichi Hatsukoi, there MUST be comparison between this series and Junjou Romantica... Well, that's because they are both by the famous-yaoi-mangaka Nakamura Shungiku whose Junjou Romantica has become the top yaoi manga/anime known by ALL yaoi-fanatics. And when she came up with the new Sekaiichi, everyone was jumping up and down awaiting its release...

And now that it's released up to volume 6 (right?), in my opinion, it is another amazing work of art. Honestly, I find Sekaiichi quite more favourable than Junjou Romantica! Why? Hehehee... I'll take my time and explain! But first thing's first; I want people to know ...
Apr 21, 2011
Preliminary (4/? eps)
This is a review of the manga Sakaiichi Hatsukoi. Judging from the art we can tell this is a work created by the same Mangaka as the popular Junjou romantica Nakamura Shungiku. As an avid Junjou Romantica fan I was looking forward to a season 3 and was a little disappointed when I found out that there more than likely wouldn't be one but I was ecstatic to hear about this being turned into an anime. For some reason for a while I overlooked the fact that it was a manga.

Story: This is often directly compared to Junjou Romantica, which is a normal ...
Feb 24, 2021
Mixed Feelings
Preliminary (29/? eps)
Spoilers ahead
Okay. It's time to break this parade of positive opinions. I started reading this because as an anime it seemed to be more interesting than JR. And at first, the story seemed not so horrible. Here we have a typical story of an old lost love from high school, which the protagonist meets after many years.
Doesn't that seem bad? Truth?
The chapters that have been adapted into two anime seasons are quite good. They have something intriguing about them. But then it just gets cyclical and boring. But, ok, I read it until chapter 29, in which Namakura ran out of ideas, and decided it ...

Interest Stacks

by Luna
37 Entries · 74 Restacks
48 Entries · 5 Restacks
50 Entries · 43 Restacks


Recent News

North American Anime & Manga Releases for May

North American Anime & Manga Releases for May

Here are the North American anime, manga, and light novel releases for May. Week 1: May 7 - 13 Anime Releases Hyouken no Majutsushi ga Sekai wo Suberu (The Iceblade more

North American Anime & Manga Releases for July

North American Anime & Manga Releases for July

Here are the North American anime, manga, and light novel releases for July. Week 1: July 4 - 10 Anime Releases Obey Me! Season 2 (Obey Me! The Anime: Season 2) more

Recent Forum Discussion

Is there a way to read the latest chapters?
fwish_fwoosh - Jan 4, 2020
15 repliesby PaperMario »»
Mar 22, 7:49 PM
Poll: Favorite couple in sekaiichi hatsukoi!
removed-user - May 29, 2015
31 repliesby Stargazingx »»
Apr 11, 2022 12:13 AM
Poll: Sekaiichi Hatsukoi: Onodera Ritsu no Baai Chapter 32 Discussion
Stargazingx - Mar 15, 2022
0 repliesby Stargazingx »»
Mar 15, 2022 3:01 PM
Poll: Sekai Ichi Hatsukoi Chapter 3 Discussion
NEKO-est - Jul 12, 2010
3 repliesby Stargazingx »»
Mar 8, 2022 11:47 AM
The World's Greatest First Love, vol, 4 WHERE TO BUY???
tbrown95 - Nov 3, 2021
2 repliesby tbrown95 »»
Nov 3, 2021 11:40 PM

Recent Featured Articles

What does Yaoi or BL mean?

What does Yaoi or BL mean?

Boy's Love or Yaoi have been exciting manga fans in Japan for several decades. Western manga fans have also jumped on the bandwagon, and are enjoying this forward moving genre. It breaks down taboos and challenges our own perceptions of manga. Let's delve deeper into the exciting world of Yaoi!

by MisterD98