, or simply known as Gag Manga Biyori, is a Japanese manga series written and illustrated by . The series features a hyperactive, random, and nonsensical style that revolves around various plots and characters throughout.
It started in Shueisha's shà Ânen manga magazine Monthly Shà Ânen Jump in the January 2000 issue. The magazine ceased publication in June 2007, and the series was transferred to the then-brand new magazine Jump Square in November of the same year, where it was published until November 2014. Shueisha collected its chapters in fifteen volumes. The manga continued in Jump Square, under the title Gag Manga Biyori GB, in December 2014.
Its first anime adaptation was a short film animated by Toei as part of Jump Festa in 2002. The first anime television series adaptation and the sequel were produced by Artland, while the third, fourth and fifth sequel were produced by Studio Deen. Most episodes are five minutes long. The first four series aired in 2005, 2006, 2008, and 2010, and the fifth series aired in 2025.
Gag Manga Biyori is a nonsensical comedy series known for its bizarre plot setups and non-sequitur humor. It has also been described as a "Monty Python-esque weirdness." In the anime adaptation, its various characters are mostly voiced by Yà «ji Ueda, Kaori Nazuka and Takeshi Maeda.
Written and illustrated by , Gag Manga Biyori debuted in Shueisha's shà Ânen manga magazine Monthly Shà Ânen Jump in the January 2000 issue. The magazine ceased its publication on June 6, 2007. Following a brief run in Weekly Shà Ânen Jump from August 27 to October 29, 2007, the series was transferred to the then brand new magazine Jump Square on November 2 of the same year. In October 2014, it was announced that the series would change its title to coincide with its 15th anniversary, being serialized under the title Gag Manga Biyori until November 4 of the same year. Shueisha collected its chapters in fifteen volumes, released from September 4, 2000, to October 3, 2014.
The series continued in Jump Square, under the title , starting on December 4, 2014. Shueisha released its first tankà Âbon volume on December 4, 2015. As of August 2, 2024, eight volumes have been released.
An anime television series adaptation, produced by Artland (first two series) and Studio Deen (third series onwards) were broadcast on Kids Station; the first 12-episode series aired from February 7 to April 25, 2005; the second 12-episode series was broadcast from August 5 to October 28, 2006; and the third series aired from March 17 to June 2, 2008. The fourth 26-episode series, Gag Manga Biyori+, was first broadcast on Yomiuri TV from January 5 to June 29, 2010. A fifth series, Gag Manga Biyori Go, aired from April 5 to June 21, 2025.
Remow licensed all five series.