Zan Sayonara Zetsubou Sensei Episode 1

Bun M Source

Plot Summary: Nozomu Itoshiki is still the bizarre teacher of the even stranger Class 2-H. He attempts to teach his students the negative aspects of the world and society, only to have each circumstance thrown at his face whenever he tries. With more students and friends than before, Zetsubo-sensei's life bcomes harder and crazier than ever before