Dedicated and highly motivated teacher Makoto Kosaka is known for her unwavering passion for education and deep concern for her students' growth. Her sincerity and strong principles have earned her great respect among students, making her a prominent figure at the school. However, her ideals and determination are seen as an obstacle by one man—Principal Okawa. Viewing Makoto as a nuisance, he conspires with his loyal student, Sera, to manipulate events and torment her. Caught in an unexpected and cruel situation, Makoto becomes the victim of a degrading scheme. A shocking story unfolds as passionate idealism clashes with the dark machinations of power within the school.