Japan's Parliament revised the Imperial House Law to cement male-only succession, blocking Princess Aiko from inheriting the throne despite public support.
https://www.foxnews.com/world/asian-nation-1500-year-old-imperial-line-insists-only-men-become-emperor-policy-revision
https://www.foxnews.com/world/asian-nation-1500-year-old-imperial-line-insists-only-men-become-emperor-policy-revision