Here comes the rookie teacher

Gokumi Enkumi Yankumi

3rd Years VS Kumiko

Activation of the Brats

The Battle draws close

Crisis for the 3rd generation

Bullet from the assassin

Wakamatsu speaks gracefully

The chivalrous spirit of Ryuuichirou

 The Shirokin Gakuin Festival

The Charismatic Host-Club

Kumikos Pissed Offl

Meeting Sayuri-chan

Kumas Mum

Shirokin Gakuins First Ever

Tetsu 15 and Minorus 14 Memories

Why Kumiko Became a Teacher

Be Warned Of Thieves

The Decoy Plan

The Return of the Legendary Man

Gokusen Special Shin-chan and Kuma

Kumikos training to win the fight

 The Kuroda Family Theatre

The Principal knows everything

What on earth is a Mingenheena

Fujiyama-senseis past

Ichikawa-kuns in big trouble

Long time no see Tenkai Kumichou

The Decoy plan lives Again

 Helper to the rescue

He's Returned

Ucchi's in Trouble!!

Kicking off a School War for Love and Justice

The Fight Begins

An Arranged Marriage for Kumiko

Bring it on Baby Farewell my Loved One

Is That Yes?

Come With Me For A Night

The Young Chief Pays a Visit?

Toshiko-chan and Alice-chan

Will Shirokin Gakuen Be Abandoned...?!

In Any Case, Aim for the Best in Japan!

The Secret Training by Carlos Shou

The Burning Boxing Match!

The Return of the Ultimate Legend?!

Tetsu's Been Arrested!!

Shinohara Sensei's Past

What's the Dream You Lost?

Shin's Getting Expelled ?!

Yamaguchi, Please!!

Recapture the Hostage!

The Father's Evil Reach...

Extra: Ojou's First Heroic Account

The Mysterious New Student Appears!!

Inuzuka vs Class 2-4

Kumiko Invades Inubou-kumi!

Summer's Arrival ! Even Gangsters Fall in Love

Minoru's Kicked Out Of The Kuroda Family?!

Shin's Older Brother

A Tumultuous School Excursion Begins!

Shirokin Boy's Escape!!

The Search for Ucchi!

The Continued Search for Ucchi!!

Tanukibara-kumi's Internal Struggle!!

Kumiko's Been Kidnapped?!

Rabid Dog Kawanishi vs The Young Red Lion

Nekomata-kumi Kaichou's End!

Shin-chan's in Trouble!! Demon High School Girl's Evil Intentions...

A Straightforward Confession

Fujichou's Spy!!

Midnight Rendezvous...

Miura-Sensei's Strangeness!

Wada Group's Boss - Kousuke

Who's My Real Father?

Assassin!

The Truth Is...

Protect Our F-Cup!

Finally, Cosplay!

Rescue of the F-cup! Rush In!

The Exciting Autumn Festival!

The Ball Snatching Contest

Miura-sensei's Scheme

A Man's Charm Is XXX

Shirokin High School's Co-Ed Plan?

Welcome, Female Students!

The School Erupts Into Violence Over Gorgeous Girls!

The Black Cross Attacks!

R.I.P., Tenkai's Boss...

The Kidnapping Victim Is...?

Special: My Name Is "Kuroda Fuji"!

Special: A Demon's Island - Mr. Ginko's Murder!

Shin, PLease Understand...

The Kuroda Family vs The Black Cross

My Beloved Knight-sama 

Breakfast~~~, Fried Food~~~

The Shocking Meeting with Knight-sama!!

Wakamatsu and Yasue-neesan

Richard-kun Re-Appears 

Aotama Senior High, The Infiltration!!

The Elite Senior High School's True Colors...!?

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 3-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 her respect. However, little does anyone in the school know that Yankumi is actually heir to the Kuroda Ikka—one of Tokyo's most powerful yakuza clans.
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(Source: Anime News Network)

Note: Chapter count includes 9 extra chapters in Volumes 9-15