The story follows the crazy misadventures of Kaizo Katsu, a former child prodigy turned weirdo after his female childhood friend, Umi, kicked him off a jungle gym in the playground, and he got a huge bump in the head.

With this set up, Kaizo (believes he is a cyborg) and his classmates, Umi (will go revealing her dark side with every chapter), Suzu, and Chitan(an inferior being?), will treat in every chapter a different topic of life with the hilarious and interesting way of thinking of the author Kumeta. The attacks of different geniuses/weirdos will create a lot of funny situations.

"This manga is about cute girls and what they do to entertain themselves. A manga that doesn't focus on frustrating topics or similar things"

5 girls asking each other about something completely random, but when they have reached a conclusion, it is always far from the original question.

(Source: Mangafox)

Nozomu Itoshiki is depressed. Very depressed. He’s certifiably suicidal, but he’s also the beloved schoolteacher of a class of unique students, each charming in her own way: The stalker. The shut-in. The obsessive-compulsive. The girl who comes to class every day with strange bruises. And Kafuka, the most optimistic girl in the world, who knows that every cloud has a silver lining. For all of them, it’s a special time, when the right teacher can have a lasting positive effect on their lives. But is that teacher Itoshiki, a.k.a. Zetsubou-sensei, who just wants to find the perfect place to die?
(Source: Del Ray)