- 1 Season
The show Gokusen is about a young woman named Kumiko Yamaguchi who is attending her new school, the Shirokin Gakuen Private School, as a math instructor. She is a homeroom teacher for Class 2 and 4, which are both filled with rowdy kids and delinquents. As soon as she enters both classes, her students instantly give her a rough time. However, she then becomes a respectable teacher of both classes, mainly due to her being the heir of the well-known Oeda Group, which is one of the most powerful Yakuza clans in the country. Surprisingly, the school has no knowledge of this whatsoever. While Kumiko is succeeding in both of her classes, she is forced to conceal her secret from the rest of the school.