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.6
Vol.9 Ch.5
Vol.9 Ch.4
 9.6
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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. 

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Other manga by the same author(s)

Chapters(59)

Sekaiichi Hatsukoi Vol.9 Ch.6 : Vol 09The Case of Onodera Ritsu No. 23

Oct 13, 2016

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
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