Emperor of Japan
Currently, the Emperor of Japan is the only head of state in the world with the English title of "Emperor". The Imperial House of Japan is the oldest continuing monarchical house in the world. The historical origins of the Emperors lie in the late Kofun period of the 3rd–7th centuries AD, but according to the traditional account of the "Kojiki" (finished 712) and "Nihon Shoki" (finished 720), Japan was founded in 660 BC by Emperor Jimmu, who was said to be a direct descendant of the sun-goddess Amaterasu. The current Emperor is Akihito. He acceded to the Chrysanthemum Throne upon the death of his father, Emperor Shōwa (Hirohito), in 1989. The Japanese government announced in December 2017 that Akihito will abdicate on 30 April 2019.
Fourth Abe Cabinet
The Fourth Abe Cabinet was formed in November 2017 by Prime Minister Shinzō Abe and is the current government of Japan. The government is a coalition between the Liberal Democratic Party and the Komeito (which had changed its name from "New Komeito" in the 2012–2014 term) and controls both the upper and lower houses of the National Diet.
R = Member of the House of Representatives
C = Member of the House of Councillors