In Japan, about 20,000 children are said to have been born through artificial insemination by donor. Since sperm donation in the country is carried out on the condition of donor anonymity, many people do not have access to any information about their biological fathers. Recently, a non-partisan group of lawmakers announced a rough draft of a bill to address the issue, but it caused controversy. Children who want to know who they are and donors who want privacy―respecting both sides is not easy. We speak to experts and people born through donor insemination. Guest: Tsuge Azumi (Professor, Meiji Gakuin University)