After studying at the Tokyo College of Photography he worked as an assistant to Kishin Shinoyama and went freelance in 1971, when he was the cameraman for advertisements for Matsushita Electric and Shiseido products.
[1] Jumonji had started taking his "Untitled" series of portraits of people framed to exclude their heads in 1971.
Installments were published in Camera Mainichi in 1979 and the set was exhibited in 1980, when it won the Ina Nobuo Award.
Jumonji started photographing architecture and gardens in 1988, and specifically the Katsura Detached Palace in 1991.
Jumonji exhibited composite photographs of four Japanese waterfalls at the Shiseido Gallery (Ginza) in June and July 2004.