In Sayonara Zetsubou Sensei, Nozomu Itoshiki, a deeply pessimistic high school teacher, finds himself immersed in despair over the most minor setbacks, often contemplating suicide. This satirical slice-of-life comedy unfolds in a contemporary setting, exploring diverse aspects of Japanese society and traditions through Nozomu's interactions with his students. Among them are Kiri Komori, a school-bound recluse; Abiru Kobushi, a mysterious figure arriving at class with unexplained injuries; the relentlessly cheerful Kafuuka Fuura, a stark contrast to Nozomu's outlook; and a group of equally eccentric girls, each adding a unique touch to the unconventional dynamic in the classroom.