Ritsu Onodera is a jaded 25 year old man who is incapable of falling in love. He gets a position as an editor in the shoujo manga department of Marukawa Publishing, even though he wanted to work in literature...and meets up with an old...friend.
Ritsu Onodera had a huge crush on his senpai back in high school. For certain reasons that aren't explained till later, their relationship didn't work out. Ten years later, Ritsu applies for a position in Marukawa Publishing's literature department because his co-workers had claimed he was using nepotism to get success in Onodera Publishing (he was the son of the guy who ran the company) and he would no longer put up with their jealousy induced rumors. Unfortunately, he ends up in the shoujo manga department. On top of that, he ends up in the "Maiden" Department, Emerald, which is known for being very strange and is avoided because of the rumors made about it. Ritsu had decided to quit and apply for a transfer immediately because he thinks his boss, Takano Masamune, is intolerable and intimidating. Takano tells Ritsu that he is useless, and that is actually what makes Ritsu stay in the department. His pride makes him stay in order to prove his worth. Later on, Ritsu would figure out that Takano was the boy he had confessed his love to in high school ten years ago.
While the main story revolves around the relationship of Ritsu and Takano, there are also side stories that concentrate on the relationship between Hatori Yoshiyuki and Chiaki Yoshino as well as the relationship of Kisa Shouta and Kou Yukina.
Side stories are not given heavy focus, each pairing given two to three episodes of screen time so far. These two pairings are also shown briefly in the opening of the anime.
|Name:||Sekai Ichi Hatsukoi|
|Romaji:||Sekai Ichi Hatsukoi|
|Aliases:||The World's Greatest First Lov|