Katsuhisa Namase

Tokushige Akira works as a general practitioner in a newly established general medicine department of a hospital. The specialty of general medicine is the 19th new field in Japan's medical system, which was previously classified into 18 specialties. Doctor Tokushige Akira examines his patients and takes into account their lifestyles, home environment, and state of mind, regardless of their gender or age. His greatest weapon is not his surgical skills or his ability to detect a disease immediately, but his questioning of patients and listening to what they say. Sometimes he sees through a lie hidden behind a patient's story. Through repeated conversations, he is able to find the best solution and lend a helping hand to their way of life.

Fresh out of college, Kumiko "Yankumi" Yamaguchi becomes a math teacher at Shirokin 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 Oedo Group - one of Tokyo's most powerful yakuza clans. If anyone finds out that Yankumi is a yakuza member, her career as a teacher could be in jeopardy.