Riku Sanjo (Japanese: 三条 陸, Hepburn: Sanjō Riku; born October 3, 1964) is a Japanese manga writer and screenwriter. He works as a story writer for manga, anime and live-action film. Sanjo graduated from Meiji University. Dragon Quest: The Adventure of Dai (1989–1996), which he created with illustrator Koji Inada, is one of the best-selling manga in history with over 47 million copies sold. The two also created Beet the Vandel Buster (2002–2006, 2016–present), which has 4 million copies in print.
Source: “Riku Sanjo”, English Wikipedia (CC BY-SA 4.0), excerpt