Zan Sayonara Zetsubou Sensei

More crazy antics abound as Nozomu Itoshiki, a.k.a Zetsubou-sensei, who is the worlds most negative person, tries to teach class 2-H about how life is filled with despair and darkness. A harder task than it first may seem, with his students being far from ordinary themselves, including the likes of the most positive girl he has ever met, his very own stalker, a foreign exchange student with split personalities and a perfectionist acting class president, due to the fact the real class president can't be seen by anyone, among others. (Source: Anime News Network)

Itoshiki Nozomu is always in despair! Even simple things like paying for the toll on the subway can send him to a despair so deep only attempted suicide is the answer. How Strange is it then, that he should be the teacher of a High School Class filled with students with even more emotional problems than his. This great Comedy will leave you in anything but 'Despair' as you meet each of his students and watch their wacky adventures.

A continuation of Zoku Sayonara Zetsubou Sensei, with more stories revolving around Nozomu Itoshiki, the extremely pessimistic or despairing teacher, and the students of class the 2-H, who are each hilariously abnormal in their own unique way except for the one relatively normal girl who hates being called normal. (Source: Anime News Network)

Despair follows Nozomu through a zombie invasion of bad ideas, the way people laugh at things they don't understand, going with the flow, and more in this sequel to Zan Sayonara Zetsubou-sensei. Also continues the use of numerous puns, inside jokes, and discussions through background text and signs. (Source: Anime News Network)

A new special episode that was distributed to those who purchase all three Blu-ray box sets of Sayonara Zetsubou Sensei series on January 31, 2012.

Onizuka is a reformed biker gang leader who has his sights set on an honorable new ambition: to become the world's greatest teacher... for the purpose of meeting sexy high school girls. Okay, so he's mostly reformed. However, strict administrators and a class of ruthless delinquents stand between Onizuka and his goal and they will use any means, however illegal or low, to drive the new teacher away. Perfect, because Onizuka's methods won't be found in any teaching manual; he cares about the difference between legal and illegal activities about as much as he cares for the age difference between himself and a high school girl. So get ready for math that doesn't add up, language you'd be slapped for using, and biology that would make a grown man blush... unless of course, you'

Satoshi Yabe has grown accustomed to being class 6-3's homeroom teacher. Since his assignment, the Marui triplets have used countless antics to play around with him. As a result, however, Yabe and the sisters learn more about each other. Continuing their last year in elementary school alongside Yabe, the triplets and their classmates never fail to stir up trouble and play pranks on one another. (Source: MAL Rewrite)

Ten year old child prodigy, Chiyo Mihama, is finding it tough fitting in at high school with the girls five years her elder: Osaka (dimwitted with a weird take on the world), Tomo (a powder keg that goes off at a moment’s notice), Kagura (the competitive athlete of the bunch), Yomi (the hothead), and Sakaki (timid and obsessed with a love of animals that isn’t reciprocated). Together with their teacher, they navigate the rough waters and fun times of high school. (Source: Sentai Filmworks)