Rikou was born in a world that was rule by a evil human that wanted the world free from different creatures that wasn't human but Rikou was a human but he was also a demon he was born a half demon and Helf human because his mom was a demon and his father was a human. But when Rikou was born his mother and father was murdered by a powerful person who didn't like Rikou father because Rikou father wanted to stop the war form killing 100,00 of people. So the evil person kills Rikou father in front of him and Rikou mother was really mad that her husband was killed and she want on a rampage take everything that come in her way and one the human that killed Rikou father had killed Rikou mother in front of him and the lest time Rikou grow up he was always lonely.