After enduring severe bullying at school, Fujisawa Ayana initially endured silently but reached a breaking point when the torment turned physical. Hospitalized after a dangerous incident, she realized her passive stance could lead to her demise. Determined to seek vengeance, she meticulously plotted retribution not only against her tormentors but also those complicit in her suffering, even former friends. As she delved into her classmates' secrets, Ayana grappled with the blurred lines between justice and personal vendettas.