....known in Japan as Katekyo Hitman Reborn! is a Japanese manga written and illustrated by A. Amano. The plot revolves around the life of a young boy, Tsunayoshi Sawada, who finds out that he is the next in line to become the leader of the powerful Mafia organization, the 'Vongola Famiglia'. As such, the Vongola's most powerful hitman -a gun-toting infant named Reborn- is sent to tutor "Tsuna" on how to become a respectable boss.
The (individual) manga chapters are serialized in Japan in Weekly Shōnen Jump. The chapters are collected and published in tankōbon volumes by Shueisha, with twenty-two volumes currently released. Viz Media licensed the series for an English language release in North America, shortening the name to Reborn!. Viz is serializing the chapters in their Shōnen Jump Advanced manga anthology and began releasing the tankōbon volumes in October 2006.
Reborn! has become one of the bestselling Weekly Shōnen Jump manga with several of its volumes becoming top-sellers in Japan. Reviewers from the series praised its use of comedy, as well as the designs used for the infants characters. They also mentioned that though it has become more violent since volume 8, it has turned into a better shōnen series, praising storylines and fights.