Geonu Dan has vowed to overthrow the status quo of the dysfunctional high school he recently transferred to, where rich and powerful third-generation chaebol heirs... more>> call the shots and gambling runs rampant. But does Geonu have what it takes to beat the odds, defeat the Taekyeong Oh Family, and restore law and order to his high school? <<less

Since the graduation of the senior members of the club, Takezou ends up being the sole member of the "Koto" (traditional Japanese string instrument) club.... more>> Now that the new school year has begun, Takezou will have to seek out new members into the club, or the club will become terminated. Out of nowhere, a new member barges into the near-abandoned club room, demanding to join the club. How will Takezou be able to keep his club alive and deal with this rascal of a new member? <<less

This is the legend of how delinquent Sakura rises to become a hero!... more>>

Fuurin High is known for having the lowest test scores, and the strongest fighters. This spring, Sakura Haruka decides to aim for the top of Fuurin, and learns of the alias Fuurin High holds, namely ‘Boufuurin’, acting as a protective shield for the town and its inhabitants. Sakura joins this group as a member, and his battle to protect the town begins! <<less

The series began as a fairly humorous and lighthearted satire of Japan's teenage delinquent-gang subculture told from the perspective of Matsushita Tadashi (who also narrates these early Karate Bu stories), a 2nd year student at Kangokou High and a constant target of Kangokou's numerous bullies who beat him up routinely after school. He is almost always accompanied by his best friend Saitou Takaki, who is also constantly harassed. As the pair grow increasingly tired of being victimized they decide to join the titular Karate Club, which is notorious throughout Osaka's youth gangs for training and producing the city's most hardened and toughest teenage thugs while maintaining the facade of a legit school sports club. But... more>> when they join the club, they find themselves picked on just as much if not worse by the club's current members. But as the story progresses they grow to be increasingly capable fighters.

As the series went on it gradually changed its tone to a more serious and violent martial arts manga, with the narrative shifting from the perspective of Matsushita to Takagi Yoshiyuki, the smart mouthed, tough-as-nails captain of the Kangokou Karate Club.

Along with the manga's change in attitude and central character, the various teenage fighters throughout the series grew increasingly stronger and even began to tap into superhuman ki abilities, putting Osu!! Karate Bu in the company of other similar epic Shōnen fighting manga such as Yu Yu Hakusho, Dragon Ball, and Fist of the North Star.

Osu!! Karate Bu was wildly popular in its native Japan, but is otherwise almost completely unknown in most other countries. It spawned a four episode OVA mini-series released over a period of two years from 1990-1992, a 1990 live action movie, and a 1994 Super Famicom fighting game. <<less

A cute, inevitable, warm love story between a blond delinquent boy and a black-haired serious girl.

Aramiya Seiichi is an ordinary high school... eroge otaku who's given up all hope on girls in the 3D world due to a certain incident. One day, after he bought a bunch of new materials in consequence of experiencing the frustration of a perfect eroge character turning out to be "used goods," he encounters a delinquent-like-looking girl being about to get raped by a bunch of guys. By mere chance, he rescues her.... more>>

Days later, when school starts again, it turns out to have been his classmate, Ayame Kotoko, a feared delinquent girl who's got all kind of rumors about her - especially that she's "used goods." And it appears that she's set on becoming his ideal girl to make him fall for her. <<less

A continuation of the manga "Shiritsu Kiwamemichi Koko", this story follows Tora of his quest to become the most notorious gangster in all of Japan.... more>> When he encounters Gakubo Masa, the boss of the Gokumasa family, he immediately admires him and joins the family on their rampages. Full-on both laughter and violence, the manga takes reader everywhere from a juvenile reformatory all the way to the halls of the Diet. <<less

The story revolves around the lives of two rough-and-tumble high-school friends Kato Hiroshi and Nakama Toru, who seemed to make a habit of getting into trouble and starting up fights. In keeping with the spirit of the manga, Toru and Hiroshi sport slicked back 50's style perms and adopted exaggerated swaggers that made them comical and yet also oddly cool. The drama also features an assortment of outlandish characters who sport even weirder fashions and hairdos. To describe the action in this drama, think Fight Club meets The Breakfast Club.... more>>

Won the 12th Kodansha Manga Award for general manga in 1988 (shared with ). <<less

Momoko is one of the brightest students at school, but the school is a bit overrun by delinquents from a motorcycle gang. In fact, the... more>> person who has the next desk has never come to class. Then one day she gets the upper hand on one of these bikers and they actually strike up a bit of a friendship, with the potential for more. Of course, it turns out that he’s the leader of the bike gang, and the student in the next seat who has been missing this entire year. <<less

After years of studying, Hanazawa Saburou, AKA Suzuran's legendary Zetton, has finally become a high school teacher. But on his first day at work, the... more>> principal tells him he was actually hired not to teach, but to make the students of his homeroom class drop out of school?! <<less

Saotome Ai is a high school girl from a well-to-do family. When she was kid, she was in an accident that resulted in a young boy being permanently scarred between his eyes while she emerged unscathed. Although she never knew who he was, she never forgot him.... more>>

Taiga Makoto' a young man with a scar between his eyes, has had a rough life, but has emerged as a rough, tough bully - a thug and a brawler and about as rude as they come - all of which he blames on the incident that gave him his scar. When Ai and Makoto run into each other again, Ai feels guilt for what Makoto has become and decides to intervene and rehabilitate him. Is he a diamond in the rough, or just a bully? <<less

In Teirin High School, you are either part of a gang or an elite sports player. Sousuke Youki, called 'the predator,' is an undefeated master at fighting. One morning, as he finishes up a fight, Kazumi, a prodigy amateur golf player, took a look at Sousuke, ignored him, and walked right by. Infuriated, Sousuke sets out to get revenge on Kazumi for dissing him but Sousuke's revenge takes a detour as he gets himself involved in playing golf by the thuggish golf coach. Will this delinquent break legends and become "the King of Golf"?... more>>

King Golf also won the 56th Shogakukan Manga Award in January 2011 in the boys category. <<less

Matsubayashi wants to be friends with his prim and proper classmate, Miyazen. And unbeknownst to him, the feeling is mutual.... more>>

However, being a brash-looking delinquent, he has a lot of trouble communicating with her, despite her valiant (and embarrassing) attempts to use references to his favourite media.

(Source: MangaDex) <<less

Chiaki Honda is a middle-school boy who neglects his studies. Furthermore, he smokes, and has dyed his hair a bright green. One evening at the arcade, a girl challenges him to a match. The girl, who straightforwardly introduces herself as Nanako Kikuchi, suggests a bet, nonchalantly wagering her body for Chiaki's watch. Chiaki is soundly defeated, and he goes home fuming.... more>>

His life goes on, of course. The next day, he meets a strange young man on the train who looks an awful lot like him. And eventually he runs into Nanako again. <<less

The author of "Clover" and "Himawari" is back! The curtain arises on a heated battle of two men in a town full of shitty delinquents!

Kobayashi is a Yankee who can neither study nor hold down a part-time job. One day, the eccentric Uno is transferred into his class. Uno saves Kobayashi from a questionable part-time job offered to him by a senior student, and the two become good friends after this incident. The more he learns about Uno, the more he is attracted to his lifestyle, and Kobayashi tries to change himself... ... more>>

This is a story of friendship between two people who are complete opposites in terms of their inability to live normally, and who struggle to live happily despite the obstacles they face. <<less

Rise to the top of a school full of delinquents with the help of beautiful gals! ... more>>

Through a combination of his good-natured personality and bad luck, Shiki Orifushi ends up enrolling in St. Lukeman's Academy, a school renowned for its delinquent students.

Before entering the school, Shiki had lived a life far removed from being a delinquent, but at St. Lukeman's, he was an herbivore thrown into a predator's cage. Shiki was well aware of his situation, but his sense of justice and good-natured personality make him catch the attention of one of the school's numerous gangs of delinquents.

For the next year, Shiki was bullied by the delinquents and lived through hellish days, but one day, he almost bumped into the school's strongest Yankee gal, Karin Kohinata, in front of a vending machine. As a result of this, Shiki's school life changes completely. <<less

Watching the news, Takemichi Hanagaki learns that his girlfriend from way back in middle school, Hinata Tachibana, has died. The only girlfriend he ever had... more>> was just killed by a villainous group known as the Tokyo Manji Gang. He lives in a crappy apartment with thin walls, and his six-years-younger boss treats him like an idiot. Plus, he's a complete and total virgin … At the height of his rock-bottom life, he suddenly time-leaps twelve years back to his middle school days!! To save Hinata, and change the life he spent running away, hopeless part-timer Takemichi must aim for the top of Kanto's most sinister delinquent gang!! <<less

Six minors (16 - 17 years) answering to the nicknames of Joe, Mario, Suppon, Baremoto, Heitai, and Kyabetsu are put into a reformatory for offenses such as aggravated assault, swindling, flight, etc.... more>>

Their stay in hell begins immediately. Accommodated by a doctor pedophile, they are placed under the watch of a despotic and brutal crew. Cellmates with a certain Sakuragi (called Anchan), the tension rises between the band of buddies and their new "friend."

A brawl breaks out, and our six prisoners are done rossés by the mysterious young man, thanks to his boxing talent. The story will not only follow the lives of these seven characters surviving in their hellish environment, but also their disillusions due to the rejection by the outside world and by their close relations. This is about the extraodinary and invincible friendships between these young men.

Note: Won the 2005 Shogakukan Manga Award for the seinen/general category along with . <<less

Kurosaki Mafuyu was a juvenile delinquent and head of her gang before her subsequent arrest got her expelled from high school. Now that she’s transferred... more>> to a new high school, she’s determined to become an “ultra-shiny, super feminine high-school student.” But with a new friend like Hayasaka-kun and a homeroom teacher like Saeki Takaomi (who may be more than he seems), will Mafuyu really be able to live a girly-girl high-school life!? <<less

The story is of Kitano Seiichirou, a very kind and pure-hearted young man, with a horrifying, monstrous face. People being what they are, they think... more>> he's a terrifying delinquent, and there are plenty of chance misunderstandings (coupled with Kitano's convenient inability to understand what's happening around him) that propel him into the position of "school guardian", a.k.a. head thug on campus. <<less

Once the bullies target you, it’s game over. The school is run by tyrants whose favorite hobby is tormenting the weakest kids in class. But... more>> then Gray arrived. This mysterious new student threatens to dismantle the established order. He may be small in stature, but his calculative and brutal fighting leaves unsuspecting opponents lying on the floor begging for mercy. Now the school's toughest bullies have to scramble to take down this new and unusual hero. (Source: WEBTOON) <<less

Momose, a clumsy girl who has always been slaved around to run errands by delinquents in her middle school, will now be attending a non-yankee high school. At her new school, she thinks of joining a club so as to not bother anyone and one day meets a classmate, a serious boy with glasses, Ichikura-kun. In reality though, that Ichikura has been an undefeated yankee in his middle school which he hid from everyone when he enrolled into this high school!... more>>

Momose is the only one who knows Ichikura-kun's secret yankee past?!

The youthful former yankee X a girl who was bullied by yankees are now having a LOVE SURVIVAL ♡ <<less

Fresh out of college, Kumiko "Yankumi" Yamaguchi becomes a math teacher at an all-boys high school. Unfortunately for her, she's assigned by the school board as the homeroom teacher for class 2-D, which happens to be the class of delinquent students. When the class attempts to make a living hell out of Yankumi's career, they fail as her persistence and aggression gain their respect. However, little does anyone in the school know that Yankumi is actually heir to the Kuroda Group - one of Tokyo's most powerful yakuza clans.... more>>

Gokusen Kanketsuhen consists of:

- 2008 special

- 2009 special

- Uchi chapter (Unscanlated)

- Halloween special

- 4-koma segments (Unscanlated) <<less

An infamous yankee, Kurokawa Morio meets a partially blind girl, Akaza Yukiko.