Sex Formula (女子大生ＳＥＸ方程式) 51 years old

Roman Porno from 1973.

Credits

Name	Character
Maki Carrousel She was 30, now 81 years old
Yoshie Kitsuda
Mari Tanaka She was 13, now 37 years old
Miyoko Aoyama
Nagatoshi Sakamoto He was 43, now 95 years old

Name	Department
Kōyū Ohara as Director. He was 37 (68) years old when He died	Directing
Yozo Tanaka as Screenplay. He was 33 (now 85) years old	Writing