Masanori Morita (Japanese: 森田まさのり, Hepburn: Morita Masanori; born December 22, 1966) is a Japanese manga artist known for his works Rokudenashi Blues and Rookies. He made his debut while still in high school and was an assistant of Tetsuo Hara on Fist of the North Star.
Source: “Masanori Morita”, English Wikipedia (CC BY-SA 4.0), excerpt