Hiroshi Motomiya is a Japanese manga artist born on June 25, 1947, in Chiba Prefecture. His career as a creator began in the late 1960s, and he rose to prominence as one of the key figures in the early days of Weekly Shonen Jump, with his work Otoko Ippiki Gaki Daisho running from 1968 to 1973. Over his long career, he has created numerous manga series that have been adapted into various forms of media, including original video animations and live-action dramas.

Among his many works, Motomiya is credited as the original creator for several anime titles. The OVA series Don - Gokudo Suikoden, released in 1992, is based on his manga of the same name. He is also the original creator for the OVA Gin no Otoko, which was released in 1992 and adapted from his adult manga. The OVA series Koha Ginjiro, which ran for three episodes from 1991 to 1992, is another adaptation of his work. Similarly, the two-episode OVA Kumo ni Noru, released in 1991, lists him as the original creator. Finally, the OVA series Ore no Sora Keiji Hen, released from 1991 to 1992, is an adaptation of his long-running Ore no Sora franchise.

Motomiya's artistic identity is characterized by a focus on strong, often macho protagonists and dramatic storytelling centered on themes of grit, honor, and perseverance. His series frequently explore social structures, from the corporate world in the highly successful Salary Man Kintaro (1994–2002) to the criminal underworld in Ore no Sora (1975–1978). He has also shown a sustained interest in historical narratives, creating a series of manga following influential figures from Japanese history under the collective title Takeki Ōgon no Kuni.

His significance in the industry extends beyond his own creations. He founded a manga artist group known as Moto Kikaku, which has been involved in various projects, including character design and story development for video game tie-ins such as Capcom's Strider Hiryu and Tenchi wo Kurau series. His influence is also seen in his role as a mentor; numerous notable manga artists, including Buronson (Fist of the North Star) and Masami Kurumada (Saint Seiya), began their careers as his assistants.