South Korea's 4B movement, a radical feminist initiative, is gaining global attention for its rejection of patriarchal norms and institutions. The movement, standing for no marriage, no childbirth, no dating, and no sex with men, emerged from resistance against gender inequality, unpaid labor, and workplace harassment. It has contributed to South Korea's record low birth rate. The movement's rise is linked to factors like the MeToo movement, the Gangnam Station murder, and political attempts to abolish the Gender Equality Ministry. Discussions are emerging about its potential spread and impact on birth rates worldwide.