Gag Manga Biyori(ギャグマンガ日和, lit. Good Day for Gag Manga) is a manga serialized in Monthly Shōnen Jump until July 2007 when the magazine ceased to publish. The manga has continued serialization in its monthly successor, Jump Square. Three 12-episode anime series were produced, selecting stories from the manga. Each episode is 5 minutes long. A fourth season is currently airing, since January 2010. Gyagu Manga Biyori is known for its hyperactive, random, and nonsensical style that revolves around various plots and characters throughout the series.