Terasaki, the new history teacher at the Senior High School, finds encouragement in the words of his Principal. "There are no bad children in this world. Some may be hard to handle but a teacher should never lose courage … never give up." But when put in charge of the third year class C, reputed to be the most incorrigible in the whole school, he is faced with surly opposition from the start. However, Terasaki perseveres. His greatest headaches are three students ... Sanae, who develops a "crush" on him, Nakanishi, who seeks to forget his unhappy home life in rugby, and Nire his pal.