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
3417 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 3121)

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
346Agree
I love the manga way more than the anime. Reason being, the amount of sexiness.
2014-08-02 10:02
196Agree
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
87Agree
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
40Agree
This needs to update faster! =)
2015-04-18 18:32
The latest part is so cute! Can't wait to see how it ends! (≧∇≦)

2245 Topics

  1. genoslover May 31, 2016 5:11 am

    does anyone know when the next one will come out??

  2. krullie May 30, 2016 7:40 am

    after reading sentiment....it's clear as day that yuu will end up with ijuuin at this point and it'll probably happen in yuu's baai (≧∀≦)

  3. iAmDhane00 May 29, 2016 3:58 pm

    Yanase made a debut on Junjou Romantica as Ijuin sensei's assistant!!! The new update just blew me off seeing Yanase being introduced it was him right!?the Yanase on Chiaki's story Tell me if i got it wrong.. But my heart saying it was him 99.9% .. Omg

    • Yuuki Diamond
      May 29, 2016 10:37 pm

      Yup. It was him. (≧∀≦) The Mangaka feels bad for him so she let him have his own Seme. ╮( ̄▽ ̄)╭

    • iAmDhane00 May 29, 2016 10:55 pm
      Yup. It was him. (≧∀≦) The Mangaka feels bad for him so she let him have his own Seme. ╮( ̄▽ ̄)╭ Yuuki Diamond

      Ohmygossh ε=ε=(ノ≧∇≦)ノ yes! I hope she'll write them their own story soon.. For th two broken hearted of JR and SH to meet like this.. My yaoi life is completed.. ε=ε=(ノ≧∇≦)ノ (๑•ㅂ•)و✧

    • Dakota May 30, 2016 4:52 am

      Most were saying Ijuin would end up with Shizukuishi. Now, I fear Yanase will be apart of a SECOND love triangle.

    • krullie May 30, 2016 7:37 am
      Most were saying Ijuin would end up with Shizukuishi. Now, I fear Yanase will be apart of a SECOND love triangle. @Dakota

      i don't think there'll be another love triangle because ijuuin/shizuku are (mangaka/editor) and that pairing's already formed by domestica whereas yuu/ijuuin are (mangaka/mangaka assistant) and that's a pairing that hasn't been formed yet.

      and there's the hair color as well so....yeah i don't see shizuku and ijuuin becoming a thing especially now that yuu has his own baai and it's getting more obvious that he's gonna end up with ijuuin.

    • iAmDhane00 May 30, 2016 10:55 am
      Most were saying Ijuin would end up with Shizukuishi. Now, I fear Yanase will be apart of a SECOND love triangle. @Dakota

      Ohmy.. No more love triangle for Yanase and Ijuin i want them to have their happy ending.. I dont mind if Yuu end up with Ijuin sensei.. But on the last part of Ijuin's part.. That part just give me the feeling of Ijuin and Yanase being an item..

    • Dakota May 30, 2016 10:58 pm

      I'd probably start crying and laughing if they made another love triangle.

  4. Pencinta manga May 29, 2016 12:15 pm

    Where can i found about yanase yuu?

  5. Anonymous May 28, 2016 11:18 pm

    Please tell me this wont end acter onodera confesses his love. Please

  6. yami59
    May 28, 2016 3:47 am

    1 sometimes, I would love to punch Takano http://www.mangago.me/read-manga/sekaiichi_hatsukoi/mh/v03/c004/8/
    2 Yukina`s proportions are crazy ( ̄∇ ̄")http://www.mangago.me/read-manga/sekaiichi_hatsukoi/mh/v03/c003/42/

  7. Anonymous May 27, 2016 4:19 pm

    uuuaaahhhhh i miss tori and chiaki so muchhhhh ┗( T﹏T )┛

  8. fujodanshi May 27, 2016 4:47 am

    Nakamura-sensei should create a side story about Kisa Shouta's brother!!! Like uurrrrgggggg!!

  9. balmy17 May 26, 2016 6:27 am

    After seeing the family picture of Yukina...

    Damn his brother is also hot...why don't we ship him to Kisa's brother!

    • Dakota May 30, 2016 4:54 am

      This author could probably start an empire based off the world of Junjō Romantica and Sekaiichi Hatsukoi. The yaoi-lution is upon us!

  10. TakaRitsu May 25, 2016 5:16 pm

    i want to download this manga, anybody knows the link ??

  11. Glass Heart May 25, 2016 6:19 am

    Kuroda and tsukishima from hybrid child!!!!

    • Glass Heart May 25, 2016 6:20 am

      Ritsu and takano past lives. Huhuhu. Its like they are the reincarnation of kuroda ans tsukishima. Even some of the personalities match

  12. Beemo
    May 24, 2016 3:07 pm

    I swear every time I read this I feel like a maiden in love. Sensei really knows how to tug at my heartstrings and captures the thought of how one wants to love and be loved like at least one of the characters she created. ⁄(⁄ ⁄·⁄ω⁄·⁄ ⁄)⁄

    • noel May 25, 2016 12:59 am

      I TOTALLY SKIMMED OVER IT! THANK YOU SO MUCH

    • s e n p a i May 25, 2016 2:58 am

      right! when I read that page I saw him and started grinning like a fool

    • iAmDhane00 May 26, 2016 9:09 am

      Yes!! That's why I will totally die fangirling if suddenly Takano/Ritsu and Misaki/Usagi meet (๑•ㅂ•)و✧ or all of Sekaiichi and JR meets in a Publishing Company Party (๑•ㅂ•)و✧ ε=ε=(ノ≧∇≦)ノ

    • noel May 27, 2016 5:43 am

      holy crap dream goals right there. dem crossovers always get me

    • yami59
      May 28, 2016 3:32 am

      Completely missed it thank you.

    • iAmDhane00 May 29, 2016 3:50 pm

      Yes.. But guess what in the JR new chapter update.. Yanase from Sekaiichi just make his debut in Junjou Romantica as Ijuin sensei's assistant ε=ε=(ノ≧∇≦)ノ (๑•ㅂ•)و✧ if Yanase and Ijuin will be an item.. my hopes and dreams for JR and SH will be much stronger than before!

  13. Anonymous May 22, 2016 4:59 pm

    What's your favorite couple in Sekaiichi Hatsukoi and WHY ?

    • Nosleepin1 May 22, 2016 10:54 pm

      Kisa and Yukina. The couple embodies two of my favorite things, a badass uke and a devoted seme.

    • idk why May 23, 2016 12:24 am

      it's ritsu and takano they are so great together and i cant stop fangirling

    • Anonymous May 23, 2016 7:23 am
      Kisa and Yukina. The couple embodies two of my favorite things, a badass uke and a devoted seme. Nosleepin1

      Agreed(づ ̄ ³ ̄)づ

    • Anonymous May 23, 2016 10:52 pm

      Yokozawa x kirishimaヾ(☆▽☆)

    • Aki
      May 27, 2016 4:17 am
      Agreed(づ ̄ ³ ̄)づ @Anonymous

      Me 3.

    • Glass heart May 22, 2016 9:04 am

      I thought so too...

    • Anonymous May 22, 2016 2:20 pm

      Well he looks like him...

    • Nosleepin1 May 23, 2016 3:41 pm

      I can wish against my wish. I want it to be Haitani. Can you imagine his frustration at trying to fascinate someone who has a brother's complex? Wouldn't that be delicious?

    • Anonymous May 23, 2016 9:20 pm
      I can wish against my wish. I want it to be Haitani. Can you imagine his frustration at trying to fascinate someone who has a brother's complex? Wouldn't that be delicious? Nosleepin1

      MmMMMmmmMm ლ(´ڡ`ლ)

  14. duts May 21, 2016 2:14 am

    A separate manga for Yukina and Kisa PLEAAAASE! ლ(´ڡ`ლ)

  15. Cynthia
    May 21, 2016 12:07 am

    So happy!!!!! Love th new update!!! But still waiting on that "I Love You" from Ritsu. (≧∀≦)

  16. Anonymous May 20, 2016 9:13 pm

    Comeon onodera repeat after me : I ..love..you !!!
    now say it !!!!

    • ScanUGH May 20, 2016 11:31 pm

      (๑•ㅂ•)و✧ Let's wait 75 days... = all his life hahaha(▰˘◡˘▰)

    • Anonymous May 24, 2016 4:13 pm
      (๑•ㅂ•)و✧ Let's wait 75 days... = all his life hahaha(▰˘◡˘▰) ScanUGH

      75 days, but it's gonna take us, Another 10 years.

    • run run May 26, 2016 12:44 am
      75 days, but it's gonna take us, Another 10 years. @Anonymous

      LMAO , no please don't ( ̄∇ ̄")

  17. Glass Heart May 20, 2016 6:26 pm

    Why do i have the feeling that mino-san gonna fall in love with ritsu? Ahahaha! Seeing ri-chan close to his son makes me think that its gonna tag some of mino -san heartstrings

People are sharing things

Which one do you prefer to be? seme/uke? and which type?
I want to be the uke to your seme...ahaha just wanna try saying that for my own kicks...ah...
Animated yaoi or the real thing?
The animated stuff. The real thing just seems fake to me. I don't know how to explain it.....
How old were you when you read/saw your first yaoi?
I was in the sixth grade when I accidentally stumbled upon it. I didn't know what gay was ...
Which one do you prefer to be? seme/uke? and which type?
I'd rather be the seme, a dominant figure. I'd like to watch my partner wither in pleasure...
Which one do you prefer to be? seme/uke? and which type?
Uke!! :) Not an innocent uke, but a naughty, arrogant, full-of-faults uke and I want to me...

People are doing

did first kiss

To a hole ex. Made my lips dry lol

6 hours ago
did first kiss

It was in 2nd gr. w/ my girl friend (i'm a girl).I was going to whisper something to her but she abruptly turned to face me.Our lips met...

23 hours ago
did get a tattoo

I got 52 stars on my body, a brand of sacrifice on my neck, Genesis 9:6, and a heart on each of my palms. Each to symbolize a part of me

1 days ago

They read this manga