Compared with conditions in Western countries, in Japan wives have a greater responsibility for domestic chores. In the pandemic, as children's classes shifted to online and childcare support facilities were temporarily closed, the burden of housework and child-rearing increased for wives. However, husbands who worked from home shared a part of the housework, and popular home delivery services helped to reduce the burdens on wives. Japan is one of the developed countries with low fertility rates. Under the pandemic, many Japanese postponed starting a family, which further shrank the country’s birthrate. There was a remarkably significant tendency to postpone having children among economically disadvantaged and socially isolated families.