Highly educated women’s likelihood of combining childrearing with continuous employment over the life course has increased among recent U.S. cohorts. This trend is less evident in many postindustrial countries characterized by very low fertility. Among such countries, Japan and Korea have exceptionally low proportions of women who remain employed after having children, despite aggressive government policies designed to encourage this. We draw on over 160 in-depth interviews with highly educated Japanese and Korean men and women of childbearing age to uncover the central incompatibilities between married women’s employment and childrearing. Individuals’ narratives reveal how labor market structure and workplace norms contribute to a highly gendered household division of labor, leading many married women to either forsake employment or to consider having only one child.