Nozomu Itoshiki
Nozomu Itoshiki is a fictional character from the anime and manga series Sayonara, Zetsubou-Sensei, created by Kōji Kumeta. He is a high school teacher known for his extreme pessimism and often contemplates the darker aspects of life. His character is marked by his signature phrase, "I'm in despair!" which he frequently exclaims in response to various situations.
Itoshiki's appearance is distinctive, featuring unkempt hair and a typically disheveled look. He often interacts with his students, who have their own unique quirks and issues, leading to humorous and absurd situations. The series uses his character to explore themes of despair, societal issues, and the absurdity of life.