Newly appointed teacher Junko Hayama passionately dedicates herself to improving her students' academic performance. However, one day, her student Mita is suspended, and while the rest of the class progresses under Junko's guidance, Mita falls behind. Mita is the chairman's son, and when he risks losing his recommendation slot, a group of teachers loyal to the chairman conspire to frame Junko. As a result, Junko's teaching position is put in serious jeopardy.