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.
Characters
Kumiko is a 23-year-old university graduate and is newly hired at Shirokin Gakuen. She is very idealistic and wants to inspire her students and help them graduate high school. Since the age of 7, when her parents died, Kumiko has been living with her grandfather, who is the head of an influential Tokyo Ninkyo group. Despite this strange upbringing and the bizarre mannerisms she has picked up from it like her use of yakuza slang and a habit of running from the cops when she sees them, Kumiko is a good-hearted girl who has a strong faith in her students even when they think the world is against them. Her belief in them and her combat skills help her earn their respect. They give her the nickname "Yankumi," something she greatly likes. It is also revealed that she is attracted to men in a fundoshi; going into a trance when she saw Shin in one. In the 2008 SP manga, Yankumi finally returned Sawada's feeling after Sawada saved her from a gang of bikers. A running gag for the drama series is that with each new series almost everyone has completely forgotten she is next in line to run the yakuza, even when asking a fellow teacher from a previous series he replied only with a puzzled look on his face. Another running gag is in the beginning of each new series, she is shown incapable of teaching unless she is teaching the delinquents of the school and, more often than not, scaring her students with her unusual behavior.