Gokusen

is a Japanese manga series written and illustrated by Kozueko Morimoto. It was serialized in Shueisha's You from 2000 to 2007, with its chapters collected in 15 wideban volumes. The story follows Kumiko Yamaguchi, the granddaughter of a yakuza boss and teacher at an all-male private high school. The manga was adapted into a three-season television drama, with Yukie Nakama in the title role, which was broadcast on Nippon TV from 2002 to 2008, followed by a theatrical film, which premiered in 2009. The manga was also adapted into a 13-episode anime television series by Madhouse, which was broadcast on Nippon TV in 2004. The anime series was licensed in North America by Media Blasters. Plot Kumiko Yamaguchi is the granddaughter of a yakuza boss, Kuroda of the Kuroda Ikka. Her parents died when she was at the age of seven, and her grandfather had no other descendants, so Kumiko is next in line to head the family business with the title of . However, her lifelong dream has been to become a teacher. While her grandfather approves of her choice, others in the family want her to become the next boss. Kumiko becomes home teacher of class 4-2 in mathematics at an all-boys private high school, where she is known as "Yankumi". Her class is full of delinquents, but she tries her hardest to teach them not just academically, but about lessons of life. Though she is forced to keep her family a secret from the public, her yakuza upbringing gives her the strength and the experience to reach out to her students, while also providing comedic situations.