Kumagai Toru is a poor art instructor who works for Seiho Girls High School, a private high school in Osaka with the motto ‘courtesy, virtue, outreach’, but his salary is a third less than certified teachers. Sakai Yuzo, the school’s chairman, runs the school like his own. One day, Kumagai is approached with a proposal by music teacher, Masaki Nahoko, and physical education instructor Oyamada who seek to confront Sakai with proof of his wrongdoings and secure their own employment. Things are still going well up to the point they boldly venture into the apartment where Sakai lives with his mistress, Morino Akemi, for direct negotiations. But after that, Sakai and Akemi go missing and bloodstains are left behind … … The couple seem to have been kidnapped by the “education consultants” Minowa Katsuhisa and Nakao Shuichi for some reason. Kumagai and Nahoko unwittingly get involved in a scheme to steal the vast amount of gold bars which are Sakai’s hidden assets. Who are the real criminals? They deceive and get deceived as a struggle for the gold bars begins around Osaka.