Sekai Ichi Hatsukoi - The World's Greatest First Love

After dating for a year, Hatori finds himself caught up in thoughts about his relationship with Yoshino. But a trip back home could put their relationship to the test! Between mixed feelings and meddling mothers—can these two overcome new challenges?

Ritsu Onodera hated the fact that people claimed he only got into his father's company because he was the son and promptly quits. He starts his new job at Marukawa Publishing house but ends up in a department for shojo manga, something he's neither interested nor experienced in. To make matters worse, the first impression he gets from the high handed editor in chief Masamune Takano is terrible...

The Emerald Editing team has started the task of releasing a magazine. Ritsu Onodera, a rookie shojo manga editor, is forced to go to the office of an author with the editor in chief, Masamune Takano. However, when Ritsu sees the author panic because of the looming deadline, he accidentally...?!

Onodera is reeling after finding out Takano’s identity. How can he work with the man who hurt him so? Between his mixed up feelings and his new work piling up, Onodera also has to handle a new face that is less than friendly and…really close with Takano?!

Onodera’s heart is pounding, his head spinning. Takano wants him, but what is his relationship with Yokozawa? On top of that, Onodera realizes one of his author’s won’t make a crucial deadline!

Chiaki Yoshino is a popular shoujo manga author under the pen name "Chiharu Yoshikawa". His friends include his childhood friend and editor Yoshiyuki Hatori, and the chief assistant Yuu Yanase they know since middle school. But one day, Yoshino happens to witness Hatori and Yanase kiss...