Beet the Vandel Buster (Japanese: 冒険王ビィト,Hepburn: Bōken Ō Bīto, literally "Adventure King Beet") is a manga series written by Riku Sanjo and illustrated by Koji Inada. Its story takes place in a fantasy world where humans have been suffering from the attacks of the demon-like Vandels. ("Vandel" is a portmanteau of "vampire and "devil".) Humans can fight back by becoming a Vandel Buster, a paid monster and Vandel assassin. The protagonist of the story, Beet, is a young boy who becomes a Vandel Buster to be like his heroes, the Zenon Warriors.
The manga was published in Shueisha's Monthly Shōnen Jump in Japan until September 2006, when Inada became ill. On December 17, 2015, it was reported that the manga will resume in the Spring 2016 issue of Jump Square.VIZ Media published the first twelve volumes in English. An anime adaption was produced by Toei Animation and Dentsu and aired on TV Tokyo. It ran for 52 episodes, followed by a sequel, Beet the Vandel Buster: Excellion, which ran for 25 episodes. The anime was licensed in North America by Illumitoon Entertainment, who only released one DVD containing 4 episodes with an English dub track.