More outrageous shenanigans erupt as Nozomu Itoshiki, known as Zetsubou‑sensei and famed for being the most pessimistic soul on earth, attempts to instruct class 2‑F in the bleakness that permeates existence. The assignment proves tougher than expected, for his pupils are anything but typical: the brightest girl he has ever encountered, a personal stalker, an exchange student who oscillates between two identities, and the flawless acting club president—since the genuine class leader remains invisible to everyone—all among a host of others and their quirky antics that keep everyone on edge.