He first came to public attention as an editor of Puff magazine, his first job after completing high school. Fujishima originally intended to be a draftsman, but took the editorial role after failing to get a drafting apprenticeship. He later became chief assistant to manga artist Egawa Tatsuya in the production of the Be Free! manga, and in 1986 began his first original manga series Taiho Shichau zo. His second manga series Aa Megami-sama, is extremely popular and has made Fujishima a household name in Japan.

He is also the character designer for the popular Tales of video game series.

He is known for his love of automobiles and motorcycles, and several of his series and their characters reflect this, such as his éX-Driver series.

YOSHIZUKI Kumichi was once his assistant.

His wife is former cosplayer OTOGI Nekomu with whom he has one child.