Tohru Fujisawa's popular manga about a wildly irreverent high school teacher comes to the screen in this live-action comedy drama. Eikichi Onizuka (Takashi Sorimachi), who barely earned his teaching degree at a second-rate college, rolls into Horobonai, a small rural town in Northern Japan on his motorcycle to take a job as a substitute instructor. Ever since the closing of the local theme park, Horobonai has fallen into an economic tailspin, and many of the town's teenagers have sunk into a deep depression. Onizuka, however, isn't the sort of person who respects the town's newly somber personality; willing to mouth off to both his students and his superiors, Onizuka isn't much of a teacher, but he knows how to get people interested, and soon his brash style (and willingness to kick a few butts) brings new life to Horobonai.

Onizuka, a former motorcycle gang member turned high-school teacher is assigned to a private academy full of troubled students. The issue at this high school revolves around an exposé-style influencer who has nearly 2 million followers who specializes in exposing and spreading rumors, causing controversies and uproar, regardless of whether the individuals involved are celebrities or ordinary people. Several teachers and students from the academy have been exposed so far, and due to being targeted so frequently, there are rumors circulating within the school that there might be a culprit impersonating the influencer. As a result, students live their school lives while constantly observing each other’s expressions, becoming increasingly suspicious and paranoid.