復讐教室

Ayana Fujisawa is bullied and beaten daily by her classmates, until one of them shoves her into traffic and nearly kills her. Recovering in the hospital, she works out that staying quiet will not save her. The only path left is revenge on the whole class: the ones who tormented her, the ones who laughed, and the ones who watched and did nothing. Ayana starts keeping notes on every classmate, collecting the secret each of them would pay to protect, then turning it against its owner.