In a world where bullying is sadly common, Hana Shirasaki finds herself in a unique and horrifying situation. Her classmate Nakajima takes pleasure in tormenting her, using extreme verbal and physical abuse to publicly humiliate her. Through fear and blackmail, Nakajima silences those who might intervene, leaving Hana isolated in her suffering. Even the bravest attempts to resist Nakajima are futile, as nobody dares to support any opposition. As Nakajima's cruelty reaches unfathomable depths, the disturbing truths hidden beneath his actions prove to be even more shocking than anyone could have imagined.