After losing her daughter and seeing her grandson in a coma, Reiko Shinohara learns Yuna was bullied by mothers led by Saori. Consumed by grief, she undergoes plastic surgery, adopts a boy, and infiltrates Saori’s circle to expose scandals and seek revenge. But as affairs and political crimes surface, her vengeance culminates in Shindo’s downfall—before she chooses renewal, opening a group home and embracing a new life.