Giving birth has generally been regarded as the most sacred duty of womankind. Nevertheless, menstruation, that allows women to become pregnant, has been regard as something \'dirty or unclean\' for a long time. In this society of double standards, here comes a gratifying blood pledge of women. Tired of oppressive working conditions, Rose unifies the menstrual cycles of all female workers with their consent and claims a worker\'s right to the company in the name of \'Menstrual Revolution.\' Rose\'s declaration says \"Menstruation of one female worker can be a disturbance, but that of all female workers is a revolution.\" This opens eyes to see our twisted society where difference is directly translated into discrimination. (Jay Sohn)