As a consequence of her parents' irresponsibility in failing to pay school lunch fees for six months, a middle school girl is forced to bear the burden herself. Cruel teachers, harboring malicious intent toward her pitiful situation, begin to target her with insidious harassment, imposing intense, suffocating restraints that crush her small chest. Furthermore, their physically driven assaults grow increasingly aggressive. The story unfolds like the dark depths of human depravity made real, vividly portraying her terror and humiliation.