2013 (Kyo) No. 5

The plaintiff husband, who had gender identity disorder and changed his gender from female to male, and the plaintiff wife requested the local public agency to amend their family registry to state the plaintiff husband as the father of their child. The child was born by artificial insemination and has no blood relationship with the plaintiff husband. The Supreme Court determined that, since the child was conceived by the plaintiff wife during marriage, he is presumed to be a child of the plaintiff husband under the Civil Code, and ordered the family registry to be amended.