Emperor of Japan
The current Emperor on the throne is typically referred to as "Tennō Heika" (, "His (Imperial) Majesty the Emperor"), "Kinjō Heika" (, "His Current Majesty") or simply "Tennō", when speaking Japanese. The current Emperor will be renamed "Daijō Tennō" (, Retired Emperor), often shortened to "Jōkō" (), upon his planned retirement on 30 April 2019, and renamed "Heisei Tennō" () after his death and will then be referred to exclusively by that name in Japanese. In Japanese culture, it is considered a major faux pas to refer to a living Emperor by his posthumous name, although the posthumous name is the same as the era, which is used in official documents.
Japanese absolute primogeniture debate
Some conservative lawmakers opposed Koizumi and said the debate was premature. The current emperor's cousin, Prince Tomohito of Mikasa, also opposed the proposal, saying that the official male members of the Japanese imperial family might take up concubines in order to produce male members because it was previously possible for a male illegitimate child to assume the imperial throne. Later he said that this remark was just a joke. Another solution would be to restore the Shinnoke (agnatic collateral branches of the imperial dynasty which had been disinherited by the United States) to the line of succession.