Recently, there has been a growing interest in South Korea to freeze eggs for delaying childbirth. This paper examines the technology of “social egg freezing” as a site where meanings of “reproductive citizenship” and gender are constructed and contested. Although the egg freezing technology is described as empowering women by giving more “choices,” the previous gender norm linking women to motherhood is strengthened, as women who freeze eggs are represented as “maternal” beings who want to give birth someday. Moreover, advertisements for egg freezing mobilize anxieties about age and illness by propagating the notion that women’s biological clock is ticking fast. However, women’s desires to control their own fertility using technology challenge the previous gendered expectations and “normal life cycle” based on age as well. This paper situate this technology in relation to the meaning of reproductive citizenship that takes personal responsibility for their fertility. With a growing pronatalism since the 1990s in South Korea, the media portrays childbearing women as patriotic and others as selfish for not helping the nation overcome the population “crisis.” Reproductive technology is regarded as a solution for low fertility, while other social reforms of women’s labor conditions and the childcare system are limited. This paper explores the new biopolitics to move beyond the individualized and technological solution.