Mother Shiho works hard to earn money for her son Yasushi to go on to school. One day, when she comes home, she finds Yasushi being beaten by young strangers. She hastily intervened and found out that his son had been bullied at school. Her classmates raise their hands to Shiho who can't hide her upset. He tries his best to stop him, but they don't stop at punching Yasushi, they start groping Shiho's plump body right in front of him...
