A Chronicle of Ultraman’s Youth: Member Fuji’s 929 Days (ウルトラマン青春記―フジ隊員の929日, Urutoraman seishunki- Fuji taiin no 929 nichi) (1994, Shōgakukan) ISBN4-09-387128-0
The Genesis Of Ultraman (ウルトラマン創世記, Urutoraman sōseiki) (2003, Shōgakukan) ISBN4-09-387464-6.