Yoshiyuki Okamura, better known as Buronson (or sometimes credited as Sho Fumimura), is a Japanese manga writer best known for Hokuto no Ken (Fist of the North Star), one of the most iconic manga series of all time.

Before becoming a manga writer, Okamura graduated from the Japanese Air Force Training School in 1967 and worked as an Air Force radar mechanic. He left the military in 1969 and quickly landed a job as a manga assistant under Hiroshi Motomiya. His writing career kicked off in 1972 with Pink Punch: Miyabi, illustrated by Goro Sakai, but his first real breakout came three years later with The Doberman Detective, drawn by Shinji Hiramatsu. Then came Hokuto no Ken in 1983—the series that would define his entire career, with art by the legendary Tetsuo Hara.

Throughout the 1980s and 90s, Buronson built an impressive catalog. He worked with Kentarou Miura on the Ourou series (1989) and its sequel Ourou Den (1990). He also forged a particularly productive partnership with artist Ryoichi Ikegami, collaborating on Strain, Human, and the acclaimed Sanctuary. Another notable collaboration was The Phantom Gang with Kaoru Shintani.

Buronson's creative voice was shaped largely by action cinema—especially Bruce Lee films and Mad Max—which you can feel throughout his harder-edged work. As for the nickname "Buronson," it's a straightforward homage to Charles Bronson. Okamura apparently admired the actor enough to adopt his namesake and even mimic his iconic mustache style.