Yurina... 38 years old, after learning that her beloved son was bullied by his classmates, she calls him to her house, but ends up being raped by a delinquent boy instead. Her son happens to witness it and can't do anything about his mother being violated. Then the rumor spreads among the delinquent friends and the acts escalate more and more... "Stop it... my beloved mother is going to get pregnant." A beautiful mother is gang-raped and creampied by a group of delinquent thugs in front of her son.