More bizarre antics unfold as Nozomu Itoshiki, also known as Zetsubou‑sensei, the world’s most negative person, attempts to instruct class 2‑H on how life is saturated with despair and darkness. The task proves harder than it first appears, because his students are far from ordinary. Among them are the most positive girl he has ever met, his own stalker, a foreign exchange student with split personalities, and a perfectionist acting‑class president, since the real class president is invisible to everyone, among others.