Story

Itoshiki Nozomu is the world's most negative person. To his way of thinking, there is no hope or meaning in this existence. Even the three kanji of his name become the two-kanji word zetsubou, "despair", when compressed. What an ironic twist of fate, then, that he becomes teacher to a class containing his precise opposite, the invincibly positive-minded Fuura Kafuka.

Music

Hito Toshite Jiku ga Bureteiru by Ootsuki Kenji and SZS cast
Sayonara Zetsubou Sensei opening song

Zessei Bijin by Nonaka Ai
Sayonara Zetsubou Sensei ending song