Secret Prostitute: Cruel Hell ((秘)女郎残酷色地獄) 51 years old

Roman Porno from 1973.

Credits

Name	Character
Naomi Oka She was 21, now 72 years old	as Okita
Kunio Shimizu He was 36, now 88 years old	as Shinkichi
Ichiro Kijima	as Hotta Izumo-no-kami
Yoshie Kitsuda	as Okume
Michiyo Mako She was 24, now 75 years old	as Okume
Hirokazu Inoue He was 26, now 24 years old	as Ishimaru Yajuro
Nagatoshi Sakamoto He was 44, now 95 years old	as Tamanoya Sakichi
Rie Nakagawa She was 0, 42 years old when she died	as Okou

Name	Department
Hajime Okayasu as Editor. He was 37 (78) years old when He died	Editing
Masayasu Ōebara as Screenplay.	Writing