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.
Suzaku Kururugi
Suzaku Kururugi, born on July 10, 2000 a.t.b., is the son of Japan's last prime minister, Genbu Kururugi. His existence was kept a secret from the public until after the war. Suzaku met Lelouch vi Britannia and his sister Nunnally vi Britannia when they moved to the Kururugi residence as a diplomatic peace trade. At first, Suzaku despised Lelouch because he thought that he was a prince who didn't care about anyone. As time passed by, however, he came to know Lelouch better, and they soon became best friends. They become separated when Britannia invaded Japan, but are reunited in the Shinjuku Ghetto.