You’ve heard of Meghan and Harry. Now meet Mako and Kei, who have Japan in a tizzy.

Royal households are, by nature, hierarchical and insular. Because the dynastic symbols of their nation, these households preserve an unique line of succession to the throne that has spawned cutthroat inner fights and curiosity worldwide. The approaching exit by Mako has pointed to renewed issues in regards to the dwindling variety of imperial members of the family and questions on whether or not the present imperial succession and marriage guidelines could also be too strict, Kyodo News reported.