Masato Yamaguchi
Masato Yamaguchi (born May 15, 1955) is a manga artist from Aso District, Kumamoto Prefecture. A former assistant to Seiichi Ikeuchi, he debuted in 1973 in Weekly Shōnen Sunday and worked mainly for shōnen magazines such as Weekly Shōnen Jump through the 1970s and 1980s. His breakthrough came with Shura ga Yuku, serialized in Weekly Manga Goraku from 1990, and he became known for ninkyō (yakuza) manga, including the cult favorite Ninkyō Chinbotsu.