Naruhito (徳仁) is the Emperor of Japan. He acceded to the Chrysanthemum Throne on 1 May 2019, beginning the Reiwa era, following the abdication of his father, Emperor Akihito. He is the 126th monarch according to Japan's traditional order of succession.
In Japan, the Emperor is never referred to by his given name, but rather is referred to as "His Majesty the Emperor" (天皇陛下 Tennō Heika) which may be shortened to "His Majesty" (陛下 Heika). In writing, the Emperor is also referred to formally as "The Reigning Emperor" (今上天皇 Kinjō Tennō). The era of Naruhito's reign bears the name "Reiwa" (令和), and according to custom he will be renamed Emperor Reiwa (令和天皇 Reiwa Tennō, see "posthumous name") by order of the Cabinet after his death. The name of the next era under his successor will be established after his death or before his abdication.
On 1 December 2017, the government announced that Naruhito's father, Emperor Akihito, would abdicate on 30 April 2019, and that Naruhito would become emperor as of 1 May 2019.
Following an abdication ceremony on the afternoon of 30 April, Akihito's reign and the Heisei era continued until the end of the day. Naruhito then succeeded him as emperor at the beginning of the day on 1 May, ushering in the Reiwa era. The transition took place at midnight. Naruhito's place as emperor was formalized in a ceremony on the morning of 1 May. In his first statement as emperor, he pledged to reflect deeply on the course followed by his father, and fulfil his responsibility "as the symbol of the state and of the unity of the people of Japan".