Sayonara, Zetsubou-Sensei (Japanese: さよなら絶望先生, Hepburn: Sayonara Zetsubō Sensei, literally "Goodbye, Mr. Despair") is a Japanese manga by Kōji Kumeta, serialized in Weekly Shōnen 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 31st Kodansha Manga Award in the shōnen category. Shaft produced three anime television series and two sets of three original video animation episodes between 2007 and 2012.
 is a Japanese manga by Kōji Kumeta, serialized in Weekly Shōnen 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 31st Kodansha Manga Award in the shōnen category. Shaft produced three anime television series and two sets of three original video animation episodes between 2007 and 2012.){kind=link}