Sekai'ichi Hatsukoi: Onodera Ritsu no Ba'ai
(世界一初恋 ～小野寺律の場合～?, lit. "The World's Greatest First Love: Onodera Ritsu's Affair") is a Japanese boys-love manga series written and illustrated by Shungiku Nakamura. In 2011, the manga was adapted into an anime television series under the title Sekai-ichi Hatsukoi
. Produced by Studio DEEN under the direction of Chiaki Kon, the anime series began its broadcast run on April 8, 2011. An original animation DVD was bundled with the fifth volume of the manga series, released in March 2011.
Onodera Ritsu, a literary editor, resigns from his father's publishing company, due to his coworkers' jealousy of his success, claiming that he is simply riding his father's business. He applies for a position at Marukawa Publishing, but instead of his preferred department of literature he is placed in the infamous shoujo manga department, Emerald. He initially considers resigning, especially because he finds his new boss, Masamune Takano, intolerable and unnerving from the very beginning; however, Takano inadvertently convinces Onodera to stick with the job by calling him "useless," his pride forcing him to stay in order to prove his worth. Later, Onodera learns that Takano's old family name was Saga, an older schoolmate from high school that Ritsu fell in love with and confessed to.
As of April 2011, there have been 4 novels published telling the story of Hatori and Chiaki, titled Yoshino Chiaki no Baai
(lit. The Case of Yoshino Chiaki). Although these novels contain mini-comics, this couple has yet to appear in a manga volume. They have, however, featured in the anime.
Written and illustrated by Shungiku Nakamura, Sekai-ichi Hatsukoi
began serialization in 2007 in The Ruby
magazine. From July 2009 to present, however, it is being published in Asuka Ciel
magazine. The individual chapters have been released as five tankōbon volumes by Kadokawa Shoten's Asuka Comic CL-DX
branch. The first volume was published on July 1, 2008, and the fifth on April 1, 2011. Sekai-ichi Hatsukoi
has not yet been released in English. The series was originally licensed for English-language release in North America by Tokyopop's Blu Manga, with volume 1 due for release on 12 July 2011. However, since the 31 May 2011 closure of Tokyopop's publishing efforts, it is currently not licensed for English release.