Five years after losing her husband, Saki lived peacefully with her son. But recently, she noticed her son acting strangely, and grew worried that something was troubling him. After researching online and gathering information from friends, she realized he might be suffering from bullying. She eventually identified the culprit as a delinquent classmate. Confronting the boy and demanding he stop, he responded by demanding her body as payment. Forced into sex, Saki hardened her heart, only to be raped by him repeatedly every day. And finally, it happened right in front of her own son…