Sekaiichi Hatsukoi (Yaoi) manga

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Nakamura Shungiku 2006 released.
Comedy / Drama / Romance / Slice Of Life / Yaoi
世界一初恋 ~小野寺律の場合~; 世界第一初恋; 世界第一初戀; 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 - Onodera Ritsu no Baai; The Case of Onodera Ritsu; World's Greatest First Love: Ritsu Onodera's Affair; World's Greatest First Love: The Case of Onodera Ritsu
Vol.9 Ch.5
Vol.9 Ch.4
Vol.9 Ch.3
 9.6
3681 voted
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Summary

The following content is intended for mature audiences and may contain sexual themes, gore, violence and/or strong language. Discretion is advised.

Sekaiichi Hatsukoi ~Onodera Ritsu no Baai~
Onodera Ritsu has just transferred from his father's publishing company to Marukawa Shoten. Assigned to the shoujo manga division, he crosses path with the person he'd least expected to meet. Takano Masamune is the editor-in-chief of the division Ritsu's been assigned to, and the two seem get off on the wrong foot right from the very start when Takano unexpectedly kisses him. However, there is more to than what meets the eye: Takano is actually Saga, Ritsu's senpai and high school love-- whom Ritsu had thought to have played him for a fool by taking his affections for granted when he confessed and summarily dumped him. (from zero_kiryuu)
loosely connected to Junjou Romantica (Usami Akihiko's name's in here!)

Sekaiichi Hatsukoi ~Kisa Shouta no Baai~

The second story tells about Ritsu's colleague Kisa Shouta
who works with him at Marukawa Shoten's Emerald shoujo
manga department and ever smiling, suave and irresistably handsome Kou Yukina. 

Photos about this manga

(All 3397)

Other manga by the same author(s)

Chapters(58)

Sekaiichi Hatsukoi Vol.9 Ch.5 : The case of Yukina Kou vol 3

May 17, 2016

Sekaiichi Hatsukoi Vol.9 Ch.4

Mar 5, 2016

Sekaiichi Hatsukoi Vol.9 Ch.3 : Vol 09The Case of Onodera Ritsu No. 21

Sep 25, 2015

Sekaiichi Hatsukoi Vol.9 Ch.2

May 10, 2015

Sekaiichi Hatsukoi Vol.9 Ch.1.1 : Vol 09Onodera Ritsu no Baai vol 9 extras

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.11 : Vol 08The Case of Onodera Ritsu vol 20

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.10 : Vol 08The Case of Onodera Ritsu vol 19

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.9 : Vol 08The Case of Onodera Ritsu vol 18

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.8 : Vol 08The Case of Onodera Ritsu vol 17

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.7.1 : Vol 08Valentine's Day Prologue

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.7 : Vol 08The case of Yukina Kou vol 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.6.5 : Vol 08Onodera Ritsu no Baai Volume 8 extra

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.6 : Vol 08The Case of Onodera Ritsu vol 16

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.5 : Vol 08The Case of Yokozawa Takafumi vol 3

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.4 : Vol 08The Case of Yokozawa Takafumi vol 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.3 : Vol 08The Case of Onodera Ritsu vol 15

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.2 : Vol 08The Case of Kisa Shouta vol 5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.8 Ch.1 : Vol 08The Case of Onodera Ritsu vol 14

Feb 19, 2015

Sekaiichi Hatsukoi Vol.7 Ch.6 : Vol 07The Case of Yokozawa Takafumi vol 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.7 Ch.3.6 : Vol 07Extra Booklet

Feb 19, 2015

Sekaiichi Hatsukoi Vol.7 Ch.3.5 : Vol 07The Case of Onodera Ritsu No. 13.5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.7 Ch.3 : Vol 07The Case of Onodera Ritsu vol 13

Feb 19, 2015

Sekaiichi Hatsukoi Vol.7 Ch.2 : Vol 07The case of Yukina Kou vol 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.7 Ch.1 : Vol 07The Case of Onodera Ritsu vol 12

Feb 19, 2015

Sekaiichi Hatsukoi Vol.6 Ch.3.5 : Vol 06The Case of Takano Masamune vol 1.5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.6 Ch.3 : Vol 06The Case of Onodera Ritsu vol 11

Feb 19, 2015

Sekaiichi Hatsukoi Vol.6 Ch.2 : Vol 06The Case of Takano Masamune vol 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.6 Ch.1 : Vol 06The Case of Onodera Ritsu vol 10

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.13 : Vol 05The Case of Hatori Yoshiyuki vol 5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.12 : Vol 05The Case of Hatori Yoshiyuki vol 4

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.11 : Vol 05The Case of Hatori Yoshiyuki vol 3

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.10 : Vol 05The Case of Hatori Yoshiyuki vol 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.9 : Vol 05The Case of Hatori Yoshiyuki vol 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.8 : Vol 05The Case of Yoshino Chiaki vol 4

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.7 : Vol 05The Case of Yoshino Chiaki vol 3

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.6 : Vol 05The Case of Yoshino Chiaki vol 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.5 : Vol 05The Case of Yoshino Chiaki vol 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.4.6 : Vol 05Extra

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.4.5 : Vol 05The Case of Kisa Shouta vol 4.5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.3 : Vol 05The Case of Onodera Ritsu vol 9

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.2 : Vol 05The Case of Onodera Ritsu vol 8

Feb 19, 2015

Sekaiichi Hatsukoi Vol.5 Ch.1 : Vol 05The Case of Kisa Shoutai vol 4

Feb 19, 2015

Sekaiichi Hatsukoi Vol.4 Ch.4 : Vol 04The Case of Kisa Shouta vol 3

Feb 19, 2015

Sekaiichi Hatsukoi Vol.4 Ch.3 : Vol 04The Case of Onodera Ritsu vol 7.5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.4 Ch.2 : Vol 04The Case of Onodera Ritsu vol 7

Feb 19, 2015

Sekaiichi Hatsukoi Vol.4 Ch.1 : Vol 04The Case of Onodera Ritsu vol 6

Feb 19, 2015

Sekaiichi Hatsukoi Vol.3 Ch.4 : Vol 03The Case of Kisa Shouta vol 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.3 Ch.3 : Vol 03The Case of Kisa Shouta vol 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.3 Ch.2 : Vol 03The Case of Onodera Ritsu vol 5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.3 Ch.1 : Vol 03The Case of Onodera Ritsu vol 4.5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.2 Ch.4 : Vol 02The Case of Onodera Ritsu vol 4

Feb 19, 2015

Sekaiichi Hatsukoi Vol.2 Ch.3 : Vol 02The Case of Onodera Ritsu vol 3 part 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.2 Ch.2 : Vol 02The Case of Onodera Ritsu vol 3 part 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.2 Ch.1 : Vol 02The Case of Onodera Ritsu vol 2.5

Feb 19, 2015

Sekaiichi Hatsukoi Vol.1 Ch.4 : Vol 01The Case of Onodera Ritsu vol 2 part 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.1 Ch.3 : Vol 01The Case of Onodera Ritsu vol 2 part 1

Feb 19, 2015

Sekaiichi Hatsukoi Vol.1 Ch.2 : Vol 01The Case of Onodera Ritsu vol 1 part 2

Feb 19, 2015

Sekaiichi Hatsukoi Vol.1 Ch.1 : Vol 01The Case of Onodera Ritsu vol 1 part 1

Feb 19, 2015
...
click to show all of the chapters
Sort by: Popularity / Date
2014-08-02 01:54
360Agree
I love the manga way more than the anime. Reason being, the amount of sexiness.
2014-08-02 10:02
203Agree
How can you not fall for this sweet story? Once you start reading, you get addicted. So much love, everyone wants it ~
2014-08-02 01:05
90Agree
Im not surptised! Its one of Nakamura Shungiku works! That is all I have to say and to me that is a lot. :)
2014-09-08 08:55
45Agree
This needs to update faster! =)
2015-04-18 18:32
The latest part is so cute! Can't wait to see how it ends! (≧∇≦)

2312 Topics

  1. Anonymous July 24, 2016 11:39 pm

    What chapter does onodera say he lost his virginity?

  2. Willowzara34
    July 20, 2016 4:06 pm

    Onodera, you cute lil tsun tsun (⁄ ⁄·⁄ω⁄·⁄ ⁄)

  3. Hello :3 July 19, 2016 11:24 am

    When I was looking at the people's comments on the wikia, I read that Takano quit smoking (or at least tried) because Ritsu said he found it unattractive. But I don't remember such a scene... Does someone remember something like that ??

    • Anonymous July 20, 2016 12:29 pm

      Nope

    • Anonymous July 20, 2016 12:31 pm

      I think it was just a headcanon because that never happened

    • Anonymous July 23, 2016 5:34 am

      Okay, thank you for your reply ^_^

  4. fattycatsocute July 17, 2016 8:47 am

    so dazzling ヾ(☆▽☆)

  5. Anonymous July 14, 2016 9:24 pm

    Where's the update sheyt

  6. Derp
    July 12, 2016 5:35 pm

    Ritsu and takano Oml YASSSSSSSSSSSS(≧∀≦)

  7. kunyunkawaii July 12, 2016 5:24 am

    The chapters that I read just those about Yokozawa and Kirishima ╮( ̄▽ ̄)╭

  8. Anonymous July 11, 2016 10:31 am

    Great story. Terrible character designs.

    • Anonymous July 21, 2016 2:24 pm

      Someone please translate it :(

    • AtashiDatte July 22, 2016 9:36 am

      Here's a quick summary in the meantime, I gave a reaaally quick one in a previous comment but here is more detail. Because of the way the pages are scanned some of the dialogue is hard to make out.
      Because of the typhoon they are grounded and stuck at the ryokan. Because of cancelations they are able to stay one more night, but there's only 3 rooms available. Of course Takano is forcing Ritsu to share a room with him (even though Ritsu keeps saying he wants to share with anyone else... but Takano uses work power harassment ;)
      The heavy rain reminds Takano of that time Ritsu came back to school and brought him an umbrella (see: case of Takano Masamune 1. It's cute he brings this up because this is the incident that catalyzed Takano falling in love!) and Ritsu doesn't remember. Takano says Ritsu was always stalking him back then and Ritsu asks him not to talk about him like he's a criminal or something lol. Takano tells him that even though back then he wouldn'thave thought they'd ever travel together in such a storm, this time, he's glad they're here together, and kisses him. Ritsu gets all worked up about doing that kind of thing here and Takano asks him if it's ok in the room lol. Takano kisses him again but they're interrupted by Kisa who wants to go into the bath with Ricchan. Takano gets pissed and tells Ritsu next time they have to do it at least 3 times and Ritsu's all "wtf is that!" While poor Kisa is all "what're you guys talking about"

      The little doodle at the end is Ritsu with the udon set he bought for himself :) and a bunch of the usual thank yous from the author for the series having reached volume 11.

    • Anonymous July 22, 2016 3:31 pm
      Here's a quick summary in the meantime, I gave a reaaally quick one in a previous comment but here is more detail. Because of the way the pages are scanned some of the dialogue is hard to make out. Because of t... AtashiDatte

      I THANKS YOU I LOVES YOU

    • AtashiDatte July 22, 2016 8:55 pm
      I THANKS YOU I LOVES YOU @Anonymous

      You're welcome! :)

    • Catnip
      July 23, 2016 5:38 am
      Here's a quick summary in the meantime, I gave a reaaally quick one in a previous comment but here is more detail. Because of the way the pages are scanned some of the dialogue is hard to make out. Because of t... AtashiDatte

      Thank you :3

    • AtashiDatte July 23, 2016 7:14 am

      Btw, I noticed the numbering system on this site is incorrect, not sure why it says the most recent chapters are volume 9, they are actually volume 11. Starting from next chapter released at end of August will be whatever goes into volume 12.

  9. Cowcan July 7, 2016 1:52 pm

    haha Yukinas and Kisas family xD

  10. Maskkie
    July 7, 2016 6:59 am

    My feeling just got crush. Made me so happy then slap in the face no update.... My feels (〜 ̄△ ̄)〜

  11. Anonymous July 6, 2016 4:48 pm

    wtf i've seen this new chapter somewhere before....is this a real update?

    • Anonymous July 6, 2016 8:18 pm

      It is. Check the chapter below the latest

    • Anonymous July 6, 2016 10:03 pm
      It is. Check the chapter below the latest @Anonymous

      İts NOT

  12. Vampire Queen July 6, 2016 2:11 pm

    Hatori and Chiaki chapter! Wow its been awhile since we had a chapter for these two.

    • Anonymous July 6, 2016 10:04 pm

      Dude its fake

    • Vampire Queen July 7, 2016 7:36 am
      Dude its fake @Anonymous

      ikr, im just commenting that it has been awhile since the focus has been on them (Hatori X Chiaki) and not the main duo of Takano X Onodera.

  13. kurose-kun lover
    July 6, 2016 5:49 am

    lead- name yurin(gets teased b'coz of d name)
    lands in a // world were in a royal household meets 3or more prince
    made to duel wid youngest over a falling cuttlery and later becomes his fiance
    ANYONE DOES IT RING THE BELLS!! PLZ TELL

    • Anonymous July 6, 2016 11:01 am

      Its "kyo kara mao" and his name is shibuya yuri

    • kurose-kun lover
      July 6, 2016 3:47 pm
      Its "kyo kara mao" and his name is shibuya yuri @Anonymous

      waaA.. THANK YOU that's the one i was searching for,(๑•ㅂ•)و✧ thanks again

    • KAGEYUKI
      July 8, 2016 4:46 am

      I really love this anime! A friend introduced me to it and now its one of my favorites. I totally ship Yuri and Wolfram!

  14. Ninjabunny July 6, 2016 4:41 am

    Who remembers the first chapter Hatori and Chiaki appeared in? Thanks

  15. Strom48
    July 6, 2016 2:12 am

    I see a face familiar page 25 all the way to the right any quest everyone

    • Strom48
      July 6, 2016 2:12 am

      on
      Sekaiichi Hatsukoi > Vol.9 Ch.5

    • Strom48
      July 6, 2016 3:13 am
      onSekaiichi Hatsukoi > Vol.9 Ch.5 Strom48

      also I will like to ship the two older brother together

    • Ren July 6, 2016 4:06 am

      u mean 24? cause i see misaki on 24 but just kisa, yukina and aniki on 25
      (=・ω・=)

    • Strom48
      July 6, 2016 4:41 am
      u mean 24? cause i see misaki on 24 but just kisa, yukina and aniki on 25 (=・ω・=) @Ren

      yes that the one(๑•ㅂ•)و✧

  16. Huntor
    July 5, 2016 11:12 pm

    Onodera smut pls

  17. Eto July 5, 2016 8:56 pm

    I'm so confused by this couple, why don't I remember them? Maybe I'm to focused on Takano and Ritsu...

    • Anonymous July 6, 2016 12:49 am

      Their chapters have not been translated. Most groups have stayed away from it because Tori brutally rapes Chiaki, when Chiaki is sick and can't fight back. Then suddenly Chiaki is supposed to be in love with him instead of being terrified and traumatised.

    • hersheycoco July 6, 2016 7:03 am
      Their chapters have not been translated. Most groups have stayed away from it because Tori brutally rapes Chiaki, when Chiaki is sick and can't fight back. Then suddenly Chiaki is supposed to be in love with hi... @Anonymous

      Wait didn't that happen a long time ago? Like in the first few chapters or had there been some new development?

    • Unorigional Artist
      July 6, 2016 7:18 am
      Their chapters have not been translated. Most groups have stayed away from it because Tori brutally rapes Chiaki, when Chiaki is sick and can't fight back. Then suddenly Chiaki is supposed to be in love with hi... @Anonymous

      REALLY??????!!!!!

    • ultrabeard
      July 6, 2016 5:16 pm
      Their chapters have not been translated. Most groups have stayed away from it because Tori brutally rapes Chiaki, when Chiaki is sick and can't fight back. Then suddenly Chiaki is supposed to be in love with hi... @Anonymous

      So standard yaoi logic of falling love?

    • blackdia July 6, 2016 9:47 pm
      So standard yaoi logic of falling love? ultrabeard

      (づ ̄ ³ ̄)づ

    • Nicki
      July 7, 2016 11:30 pm
      Their chapters have not been translated. Most groups have stayed away from it because Tori brutally rapes Chiaki, when Chiaki is sick and can't fight back. Then suddenly Chiaki is supposed to be in love with hi... @Anonymous

      This is very sad. Why did Nakamura have to write something like this?

    • Unorigional Artist
      July 8, 2016 12:16 am
      This is very sad. Why did Nakamura have to write something like this? Nicki

      She did?????!!!

    • Catnip
      July 8, 2016 3:02 pm
      She did?????!!! Unorigional Artist

      Nope, I think she didn't. Yoshino and Hatori have their own novel and the author is not Shungiku Nakamura but Fujisaki Miyako. Nakamura is just doing the drawing, she didn't write the rape scene.

    • Unorigional Artist
      July 8, 2016 9:42 pm
      Nope, I think she didn't. Yoshino and Hatori have their own novel and the author is not Shungiku Nakamura but Fujisaki Miyako. Nakamura is just doing the drawing, she didn't write the rape scene. Catnip

      Oh okay....phew!

    • Catnip
      July 10, 2016 8:22 am
      Oh okay....phew! Unorigional Artist

      :)

    • Eto July 11, 2016 12:12 am

      haha I'm so relieved that I'm not the only one confused! and thank you everyone for explaining!

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