is a Japanese manga by Kouji Kumeta, serialized in Weekly Shounen Magazine. It is a comedy about a teacher who takes all aspects of life, word and culture in the most negative light possible. It satirizes politics, media, and Japanese society. In 2007, the manga received the thirty-first Kodansha Manga Award in the shounen category, and was adapted into a twelve-episode anime series. A second season, titled (Zoku) Sayonara, Zetsubou-Sensei, aired between January and March 2008. A set of three OVAs titled Goku: Sayonara, Zetsubou-Sensei were produced between October 2008 and February 2009. The first and third volume were bundled with the limited edition of volume fifteen and sixteen of the manga while the second volume was released separately. A third anime TV series, Zan: Sayonara, Zetsubou-Sensei, aired between July and September 2009.